An electroscope charged WITHOUT contacting a charged body is charged by: w) induction x) conduction y) convection z) insulation

An electroscope charged WITHOUT contacting a charged body is charged by: w) induction x) conduction y) convection z) insulation
by

1 Answer

Answer :

ANSWER: W -- INDUCTION
by

Related questions

A zinc plate is attached to the knob of a negatively charged electroscope. What will happen to the leaves of the electroscope when ultraviolet light is shown on the zinc plate. Will the leaves: w) collapse at once x) gradually come together y) gradually spread further apart z) remain unaffected

Description : A zinc plate is attached to the knob of a negatively charged electroscope. What will happen to the leaves of the electroscope when ultraviolet light is shown on the zinc plate. Will the leaves: w) collapse at once x) gradually come together y) gradually spread further apart z) remain unaffected

Last Answer : ANSWER: X -- GRADUALLY COME TOGETHER

In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Description : In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Last Answer : ANSWER: Z -- RADIATION

Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Description : Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Last Answer : ANSWER: Y -- RADIATION

Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation

Description : Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation 

Last Answer : ANSWER: Y -- RADIATION

The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: Changes in weather involve air movements, formation of clouds, and precipitation. Energy is needed to make all these things happen. That energy comes from the sun. Heat energy ... radiation. Hot bodies such as the sun radiate their energy mainly in the form of short waves.

Ocean currents are an example of – (1) convection (2) conduction (3) insulation (4) radiation

Description : Ocean currents are an example of – (1) convection (2) conduction (3) insulation (4) radiation

Last Answer : (1) convection Explanation: Heat is transferred by convection in numerous examples of naturally occurring fluid flow, such as: wind, oceanic currents, and movements within the Earth's atmosphere. ... transfer heat from the surplus to deficit heat zones and set the oceanic circulation in motion.

Ocean currents are an example of (1) convection (2) conduction (3) insulation (4) radiation

Description : Ocean currents are an example of (1) convection (2) conduction (3) insulation (4) radiation

Last Answer : convection

Insulators perform which of the following functions? a) Conduction b) Convection c) Provide electrical insulation d) Allows current leakage at interfaces

Description : Insulators perform which of the following functions? a) Conduction b) Convection c) Provide electrical insulation d) Allows current leakage at interfaces

Last Answer : c) Provide electrical insulation

Upto the critical radius of insulation, added insulation, will (A) Increase the heat loss (B) Decrease heat loss and will have no effect beyond that (C) Decrease heat flux (D) Reduce convection heat loss compared to conduction heat less

Description : Upto the critical radius of insulation, added insulation, will (A) Increase the heat loss (B) Decrease heat loss and will have no effect beyond that (C) Decrease heat flux (D) Reduce convection heat loss compared to conduction heat less

Last Answer : Option B

What kind of charge was put on the electroscope by the acetate rod that was charged with the silk Explain how to determine this.?

Description : What kind of charge was put on the electroscope by the acetate rod that was charged with the silk Explain how to determine this.?

Last Answer : Need answer

The term "laminar flow" is most often associated with the description of: w) conduction of sound by waves x) current flow in transistors y) effects of viscosity of liquids z) passage of light rays through a liquid

Description : The term "laminar flow" is most often associated with the description of: w) conduction of sound by waves x) current flow in transistors y) effects of viscosity of liquids z) passage of light rays through a liquid

Last Answer : ANSWER: Y -- EFFECTS OF VISCOSITY OF LIQUIDS

A capacitor and a coil are connected in series. The capacitor is charged and allowed to discharge through the coil. The current that will then flow through the capacitor-coil combination will do one of the following things. Will it: w) flow in one direction, beginning at a maximum and decreasing rapidly to zero x) oscillate indefinitely y) oscillate but diminish steadily to zero z) oscillate at high frequency at first but then at slower frequency

Description : A capacitor and a coil are connected in series. The capacitor is charged and allowed to discharge through the coil. The current that will then flow through the capacitor-coil combination will do ... but diminish steadily to zero z) oscillate at high frequency at first but then at slower frequency  

Last Answer : ANSWER: Y -- OSCILLATE BUT DIMINISH STEADILY TO ZERO

In the mass spectrograph, two positively charged ions having the same velocity pass through a slit and enter a uniform magnetic field at right angles to their initial velocities. The ions will NOT be separated if: w) they have the same masses but different charges x) they have the same charges but different masses y) the products of their charges and their masses are equal z) the ratios of their charges to their masses are equal

Description : In the mass spectrograph, two positively charged ions having the same velocity pass through a slit and enter a uniform magnetic field at right angles to their initial velocities. The ions will NOT be ... charges and their masses are equal z) the ratios of their charges to their masses are equal  

Last Answer : ANSWER: Z -- THE RATIOS OF THEIR CHARGES TO THEIR MASSES ARE EQUAL 

Which of the following phrases completes the following statement: The strength of the electric field between two oppositely charged parallel plates is: w) a maximum midway between the plates x) a maximum near the positively charged plate y) constant between the plates except near the edges z) zero midway between the plates

Description : Which of the following phrases completes the following statement: The strength of the electric field between two oppositely charged parallel plates is: w) a maximum midway between the plates x) a maximum ... plate y) constant between the plates except near the edges z) zero midway between the plates

Last Answer : ANSWER: Y -- CONSTANT BETWEEN THE PLATES EXCEPT NEAR THE EDGES

A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the cathode? Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions

Description : A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the ... Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions

Last Answer : ANSWER: Z -- POSITIVELY CHARGED NEON IONS

A metal ball on an insulated stand is touched by a positively charged glass rod. What happens to the metal ball? Does it w) gain protons and lose electrons x) gain protons y) gain more protons than electrons z) lose electrons

Description : A metal ball on an insulated stand is touched by a positively charged glass rod. What happens to the metal ball? Does it w) gain protons and lose electrons x) gain protons y) gain more protons than electrons z) lose electrons

Last Answer : ANSWER: Z -- LOSE ELECTRONS

In a charged hollow metal conductor, the charge is w) on the inside surface only x) on both the inside and outside surfaces y) on the outside surface only z) only between the inside and outside surfaces

Description : In a charged hollow metal conductor, the charge is w) on the inside surface only x) on both the inside and outside surfaces y) on the outside surface only z) only between the inside and outside surfaces

Last Answer : ANSWER: Y -- ON THE OUTSIDE SURFACE ONLY

The force on a charged particle moving parallel to magnetic field lines is: w) in the direction of the field x) zero y) perpendicular to the field z) in the opposite direction of the field

Description : The force on a charged particle moving parallel to magnetic field lines is: w) in the direction of the field x) zero y) perpendicular to the field z) in the opposite direction of the field

Last Answer : ANSWER: X -- ZERO

When a fast charged particle traverses a dielectric medium at a velocity exceeding the velocity of light in that medium, radiation is emitted. This radiation is known as: w) point radiation x) Cerenkov radiation y) Synchrotron radiation z) Bremsstrahlung

Description : When a fast charged particle traverses a dielectric medium at a velocity exceeding the velocity of light in that medium, radiation is emitted. This radiation is known as: w) point radiation x) Cerenkov radiation y) Synchrotron radiation z) Bremsstrahlung

Last Answer : ANSWER: X -- CERENKOV RADIATION

What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Description : What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Last Answer : ANSWER: X -- COULOMB'S LAW

One of the following is a device that detects charged particles but does NOT show their tracks. Is this device the: w) spark chamber x) photographic plate y) scintillation counter z) bubble chamber

Description : One of the following is a device that detects charged particles but does NOT show their tracks. Is this device the: w) spark chamber x) photographic plate y) scintillation counter z) bubble chamber

Last Answer : ANSWER: Y -- SCINTILLATION COUNTER 

Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Last Answer : ANSWER: Z -- MAXWELL'S EQUATIONS

Which one of the following laws best describes the operation of an electric generator? w) Ampere's Law x) Gauss' Law y) Ohm's Law for Conductors z) Faraday's Law of Induction

Description : Which one of the following laws best describes the operation of an electric generator? w) Ampere's Law x) Gauss' Law y) Ohm's Law for Conductors z) Faraday's Law of Induction

Last Answer : ANSWER: Z -- FARADAY'S LAW OF INDUCTION 

Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of- (1) Convection only (2) Conduction and convection only (3) Radiation and convection only (4) Convection, conduction and radiation

Description : Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of- (1) Convection only (2) Conduction and convection only (3) Radiation and convection only (4) Convection, conduction and radiation

Last Answer : (3) Radiation and convection only Explanation: Conduction is the transfer of heat energy by direct contact, convection is the movement of heat by actual motion of matter; radiation is the transfer of energy with the help of electromagnetic waves.

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in – (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in – (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : (2) Convection Explanation: The process of heat transfer from one place to an-other place without the movement of particles is called conduction Example: Heat transfer through Metal rods. On the ... heated particles of the substance. The fluids (liquids and gases) are heated by this process.

Energy travels from Sun to Earth through – (1) conduction (2) convection (3) radiation (4) modulation

Description : Energy travels from Sun to Earth through – (1) conduction (2) convection (3) radiation (4) modulation

Last Answer : (3) radiation

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in - (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in - (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : (2) Convection Explanation: The process of heat transfer from one place to another place without the movement of particles is called conduction,

Heat transfer horizontally within the atmosphere is called – (1) Conduction (2) Convection (3) Absorption (4) Advection

Description : Heat transfer horizontally within the atmosphere is called – (1) Conduction (2) Convection (3) Absorption (4) Advection

Last Answer : (4) Advection Explanation: Convection transfers heat vertically into the atmosphere. In order for heat to be transferred to other regions, it must be transferred horizontally by the wind. The horizontal ... advection is the transport of pollutants or silt in a river by bulk water flow downstream.

Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : (3) Radiation Explanation: In physics, radiation is a process in which energetic particles or energetic waves travel through vacuum, or through mattercontaining media that are not required for their propagation.

Suns heat reaches us by – (1) Conduction (2) Convection (3) Radiation (4) Reflection

Description : Suns heat reaches us by – (1) Conduction (2) Convection (3) Radiation (4) Reflection

Last Answer : (3) Radiation Explanation: Radiation is a process in which energetic particles or energetic waves travel through vacuum, or through matter-containing media that are not required for their propagation. The sun' ... frequencies), but those from the sun are mainly infra-red, visible, and ultra-violet.

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: The radiation (light, heat, etc.) travels through the intervening 150,000,000 kilometers in 8 minutes. Radiation is a process in which energetic particles or energetic waves ... waves or sound waves, are usually not considered to be forms of "radiation" in this sense.

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : Convection

Energy travels from Sun to Earth through (1) conduction (2) convection (3) radiation (4) modulation

Description : Energy travels from Sun to Earth through (1) conduction (2) convection (3) radiation (4) modulation

Last Answer : radiation

Sun’s heat reaches us by (1) Conduction (2) Convection (3) Radiation (4) Reflection

Description : Sun’s heat reaches us by (1) Conduction (2) Convection (3) Radiation (4) Reflection

Last Answer : Radiation

Heat transfer horizontally within the atmosphere is called (1) Conduction (2) Convection (3) Absorption (4) Advection

Description : Heat transfer horizontally within the atmosphere is called (1) Conduction (2) Convection (3) Absorption (4) Advection

Last Answer : Advection

The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : Radiation

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

A process by which heat is transferred through a material without a bulk movement of the material.  a. Convection  b. Conduction  c. Radiation  d. Emission

Description : A process by which heat is transferred through a material without a bulk movement of the material.  a. Convection  b. Conduction  c. Radiation  d. Emission

Last Answer : Conduction

What is an electroscope ?

Description : What is an electroscope ?

Last Answer : An electroscope is an excellent instrument for static electricity testing. The device is very easy to use.

Thermal insulation is used to: w) stop the flow of heat. x) reduce the flow of heat. y) absorb heat. z) reverse the heat flow direction.

Description : Thermal insulation is used to: w) stop the flow of heat. x) reduce the flow of heat. y) absorb heat. z) reverse the heat flow direction.

Last Answer : ANSWER: X -- REDUCE THE FLOW OF HEAT. 

Phenomena in which a charged body attract uncharged body is called A. electrostatic induction B. electric current C. charge movement D. magnetic induction

Description : Phenomena in which a charged body attract uncharged body is called A. electrostatic induction B. electric current C. charge movement D. magnetic induction

Last Answer : electrostatic induction

Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Description : Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Last Answer : ANSWER: Z -- DOUBLY CHARGED MAGNESIUM ION

Clothes keep us warm in winter because they : (1) supply heat (2) do not radiate heat (3) prevent air from contacting the body (4) prevent the heat of the body from escaping

Description : Clothes keep us warm in winter because they : (1) supply heat (2) do not radiate heat (3) prevent air from contacting the body (4) prevent the heat of the body from escaping

Last Answer : (4) prevent the heat of the body from escaping Explanation: It is just because woolen clothes have fibres and between those fibres air is trapped which reduces heat loss. Air reduces heat loss ... heat from our body gets trapped inside the clothes which makes us feels warmer with the clothes.

Clothes keep us warm in winter because they : (1) supply heat (2) do not radiate heat (3) prevent air from contacting the body (4) prevent the heat of the body from escaping

Description : Clothes keep us warm in winter because they : (1) supply heat (2) do not radiate heat (3) prevent air from contacting the body (4) prevent the heat of the body from escaping

Last Answer : prevent the heat of the body from escaping

To reverse the direction of rotation of a three-phase AC induction motor, do one of the following: w) reverse any two of the three-phase connections x) change the frequency of the applied AC power y) operate the motor below the stall torque at very high slip z) none of the above

Description : To reverse the direction of rotation of a three-phase AC induction motor, do one of the following: w) reverse any two of the three-phase connections x) change the frequency of the applied AC power y) operate the motor below the stall torque at very high slip z) none of the above

Last Answer : ANSWER: W -- REVERSE ANY TWO OF THE THREE-PHASE CONNECTIONS 

Which form of heat transfer travels the fastest,convection or conduction?

Description : Which form of heat transfer travels the fastest,convection or conduction?

Last Answer : Conductor. A solid object is much better at conducting than gas, that’s why wires are wired. Air has a higher resitance to change, but also changes more than a static object, with different currents and influencing variables like humidity, barometric pressure etc.

Is an oven conduction energy or convection energy or radiation energy?

Description : Is an oven conduction energy or convection energy or radiation energy?

Last Answer : Need answer

Why earth is heated by the sun through radiation and not by convection or conduction?

Description : Why earth is heated by the sun through radiation and not by convection or conduction?

Last Answer : The space between Earth and the Sun is mostly empty (emptierthan most vacuums in Earth laboratories, in any case).Convectionand conduction require the presence of atoms.

Is a bowl of oatmeal cooling is an example of conduction radiation or convection?

Description : Is a bowl of oatmeal cooling is an example of conduction radiation or convection?

Last Answer : Convection