What is a unit to measure electric potential called?

What is a unit to measure electric potential called?
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The force per unit charge is called: (a) Electric field (b) Electric field intensity (c) Electric potential energy (d) Electric potential

Description : The force per unit charge is called: (a) Electric field (b) Electric field intensity (c) Electric potential energy (d) Electric potential

Last Answer : b) Electric field intensity

What is the unit of electric potential in SI system ?

Description : What is the unit of electric potential in SI system ?

Last Answer : : In the SI system, the unit of electrical potential is 'volts'.

'Kilowatt-hour' is the unit of - (1) potential difference (2) electric power (3) electric energy (4) electric potential

Description : 'Kilowatt-hour' is the unit of - (1) potential difference (2) electric power (3) electric energy (4) electric potential

Last Answer : (3) electric energy Explanation: The kilowatt hour (symbolized kW h as per SI) is a composite unit of energy equivalent to one kilowatt (1 kW) of power sustained for one hour.

Potential difference is the work done in moving a unit positive charge from one point to another in an electric field. State True/False. a) True b) False

Description : Potential difference is the work done in moving a unit positive charge from one point to another in an electric field. State True/False. a) True b) False

Last Answer : a) True

Debye is the unit used to measure a) Permittivity b) Electric dipole moment c) Magnetic dipole moment d) Susceptibility

Description : Debye is the unit used to measure a) Permittivity b) Electric dipole moment c) Magnetic dipole moment d) Susceptibility

Last Answer : b) Electric dipole moment

Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy. (C) The length of divergent portion in a Venturimeter is equal to the convergent portion. (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Description : Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, ... (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Last Answer : Answer: Option C

A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a resistance of `10 ohm`. If a lengt

Description : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a resistance of `10 ohm`. If a lengt

Last Answer : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a ... `) A. 1 B. 2 C. 5 D. 10

A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a resistance of `10 ohm`. If a lengt

Description : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a resistance of `10 ohm`. If a lengt

Last Answer : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a ... `) A. 1 B. 2 C. 5 D. 10

What will an auditor who has been proposed for an audit engagement usually do prior to accepting a new client? a. Draft the financial statements of the client as a measure of goodwilb. With the permission from the prospective client, contact the predecessor auditor to determine if there are any disagreements between the client and the audit firms. c. Obtain the potential client's permission to talk to the former auditor and review work papers. d. Perform a peer review on the potential client in accordance with professional standardsl

Description : What will an auditor who has been proposed for an audit engagement usually do prior to accepting a new client? a. Draft the financial statements of the client as a measure of goodwill b ... review work papers. d. Perform a peer review on the potential client in accordance with professional standards

Last Answer : With the permission from the prospective client, contact the predecessor auditor to determine if there are any disagreements between the client and the audit firms

Colour comparator is used to measure the (A) pH value (B) Electrode potential (C) Colour intensity (D) None of these

Description : Colour comparator is used to measure the (A) pH value (B) Electrode potential (C) Colour intensity (D) None of these

Last Answer : Option A

While performing an experiment to study the dependence of current on the potential difference across two ends of the resistor, a student keeps the circuit closed for a long time to measure the current and potential difference. State how the resistance of the resistor will be affected?

Description : While performing an experiment to study the dependence of current on the potential difference across two ends of the resistor, a student keeps the circuit closed for a long time to measure the current and potential difference. State how the resistance of the resistor will be affected?

Last Answer : Answer. When the circuit is closed for a long time, the flow of current will be in excess which causes unwanted heating in the resistor and changes the value of resistance.

An insulation manufacturer talks to an executive at Wimpey to find out how much insulation material the company intents to use in building homes next year and then multiplies the estimate by the number of homes planned to be built over the country next year. The manufacturer is using a ------ approach to measure sales potential. A)use of product B)breakdown C)correlation D)buildup

Description : An insulation manufacturer talks to an executive at Wimpey to find out how much insulation material the company intents to use in building homes next year and then multiplies the estimate by the number ... --- approach to measure sales potential. A)use of product B)breakdown C)correlation D)buildup

Last Answer : D)buildup

Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have to measure the cell potential to obtain the difference in potential energy because the potential of half-reactions cannot be measured directly. C The direction of a redox reaction can only be determined experimentally. D Half-cell potentials for half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Description : Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have ... half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Last Answer : C The direction of a redox reaction can only be determined experimentally. 

In the United States, the units of measure for the potential biological risk associated with exposure to ionizing radiation are the rem and millirem. What comparable units are used in the metric system?

Description : In the United States, the units of measure for the potential biological risk associated with exposure to ionizing radiation are the rem and millirem. What comparable units are used in the metric system?

Last Answer : ANSWER: SIEVERTS or MILLISIEVERTS

What is the amount of electric potential ?

Description : What is the amount of electric potential ?

Last Answer : The amount of electric potential.

What is electric potential ?

Description : What is electric potential ?

Last Answer : Electric potential is the work that is done to bring a single positive charge to a certain point in an electric field from an infinite distance.

What is the difference between electric potential ?

Description : What is the difference between electric potential ?

Last Answer : : The difference in the electrical potential of a single charge is the amount of work done to transfer each single charge from one point of the electric field to another. If there is no difference in ... , the charge will not flow in any corner and the work will not be completed in any corner.

Is electric energy a form of kinetic or potential energy?

Description : Is electric energy a form of kinetic or potential energy?

Last Answer : It is energy of moving electrons

The magnitude of saturation photo electric current depends upon (a) Frequency (b) Intensity (c) Work function (d) Stopping potential

Description : The magnitude of saturation photo electric current depends upon (a) Frequency (b) Intensity (c) Work function (d) Stopping potential

Last Answer : Ans:(b)

In a water lifting electric pump, We convert – (1) Electrical energy into Potential energy (2) Kinetic energy into Electrical energy (3) Kinetic energy into Potential energy (4) Electrical energy into Kinetic energy

Description : In a water lifting electric pump, We convert – (1) Electrical energy into Potential energy (2) Kinetic energy into Electrical energy (3) Kinetic energy into Potential energy (4) Electrical energy into Kinetic energy

Last Answer : (1) Electrical energy into Potential energy Explanation: In a water lifting electric pump, we convert electrical energy into potential energy. In hydraulic pump mechanical energy in converted into potential energy

Which physical quantity is measured in ‘siemens’? (1) Electric potential (2) Electrical conductance (3) Magnetic flux (4) Refractive index

Description : Which physical quantity is measured in ‘siemens’? (1) Electric potential (2) Electrical conductance (3) Magnetic flux (4) Refractive index

Last Answer : (2) Electrical conductance Explanation: The Siemens is the unit of electric conductance, electric susceptance and electric admittance in the International System of Units (SI).

How is the electric potential at the centre of a charged conductor?

Description : How is the electric potential at the centre of a charged conductor?

Last Answer : Same as on the surface

Electric field strength on a dust particle having charge equal to 8 × 10- 19 when plates are separated by distance of 2 cm and have a potential difference of 5 kV is A. 2.0 × 10-13 NB. 3 NC. 5 ND. 20 N

Description : Electric field strength on a dust particle having charge equal to 8 × 10- 19 when plates are separated by distance of 2 cm and have a potential difference of 5 kV is A. 2.0 × 10-13 N B. 3 N C. 5 N D. 20 N

Last Answer : 2.0 × 10-13 N

Electric power is related to A. current in component B. potential difference C. electrical resistance D. both A and B

Description : Electric power is related to A. current in component B. potential difference C. electrical resistance D. both A and B

Last Answer : both A and B

Rate of flow of electric charge is A. electric current B. conventional current only C. electronic current only D. potential difference

Description : Rate of flow of electric charge is A. electric current B. conventional current only C. electronic current only D. potential difference

Last Answer : electric current

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge? (a) First positive, then negative and continue to be negative (b) First negative, then positive and continue to be positive (c) First positive, then negative and again back to positive (d) First negative, then positive and again back to negative.

Description : During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge? (a) First positive, then negative and continue ... and again back to positive (d) First negative, then positive and again back to negative.

Last Answer : (d) First negative, then positive and again back to negative.

When electric potential is null, then the electric field intensity will be a) 0 b) 1 c) dA/dt d) –dA/dt

Description : When electric potential is null, then the electric field intensity will be a) 0 b) 1 c) dA/dt d) –dA/dt

Last Answer : d) –dA/dt

The line integral of the electric field intensity is a) Mmf b) Emf c) Electric potential d) Magnetic potential

Description : The line integral of the electric field intensity is a) Mmf b) Emf c) Electric potential d) Magnetic potential

Last Answer : b) Emf

Calculate the electric field intensity of a line charge of length 2m and potential 24V. a) 24 b) 12 c) 0.083 d) 12.67

Description : Calculate the electric field intensity of a line charge of length 2m and potential 24V. a) 24 b) 12 c) 0.083 d) 12.67

Last Answer : b) 12

The capacitance of a material refers to a) Ability of the material to store magnetic field b) Ability of the material to store electromagnetic field c) Ability of the material to store electric field d) Potential between two charged plates

Description : The capacitance of a material refers to a) Ability of the material to store magnetic field b) Ability of the material to store electromagnetic field c) Ability of the material to store electric field d) Potential between two charged plates

Last Answer : c) Ability of the material to store electric field

Find the electric field of a potential function given by 20 log x + y at the point (1,1,0). a) -20 i – j b) -i -20 j c) i + j d) (i + j)/20

Description : Find the electric field of a potential function given by 20 log x + y at the point (1,1,0). a) -20 i – j b) -i -20 j c) i + j d) (i + j)/20

Last Answer : a) -20 i – j

Calculate the potential when a conductor of length 2m is having an electric field of 12.3units. a) 26.4 b) 42.6 c) 64.2 d) 24.6

Description : Calculate the potential when a conductor of length 2m is having an electric field of 12.3units. a) 26.4 b) 42.6 c) 64.2 d) 24.6

Last Answer : d) 24.6

If the electric potential is given, which of the following cannot be calculated? a) Electrostatic energy b) Electric field intensity c) Electric flux density d) Permittivity

Description : If the electric potential is given, which of the following cannot be calculated? a) Electrostatic energy b) Electric field intensity c) Electric flux density d) Permittivity

Last Answer : a) Electrostatic energy

If potential V = 20/(x 2 + y 2 ). The electric field intensity for V is 40(x i + y j)/(x 2 + y 2 ) 2 . State True/False. a) True b) False

Description : If potential V = 20/(x 2 + y 2 ). The electric field intensity for V is 40(x i + y j)/(x 2 + y 2 ) 2 . State True/False. a) True b) False

Last Answer : a) True

Find the electric potential for an electric field 3units at a distance of 2m. a) 9 b) 4 c) 6 d) 3/2

Description : Find the electric potential for an electric field 3units at a distance of 2m. a) 9 b) 4 c) 6 d) 3/2

Last Answer : c) 6

The electric field intensity is the negative gradient of the electric potential. State True/False. a) True b) False

Description : The electric field intensity is the negative gradient of the electric potential. State True/False. a) True b) False

Last Answer : a) True

Gauss law can be used to compute which of the following? a) Permittivity b) Permeability c) Radius of Gaussian surface d) Electric potential

Description : Gauss law can be used to compute which of the following? a) Permittivity b) Permeability c) Radius of Gaussian surface d) Electric potential

Last Answer : c) Radius of Gaussian surface

According to electron theory, an electric current flows from what potential to what potential?

Description : According to electron theory, an electric current flows from what potential to what potential?

Last Answer : Electron theory assumes that electron flow is from negative to positive.

Magnetic fields are produced by: w) resistance x) an electric potential difference y) electric current z) stationary charge

Description : Magnetic fields are produced by: w) resistance x) an electric potential difference y) electric current z) stationary charge

Last Answer : ANSWER: Y -- CURRENT 

Ten coulombs of charge are placed on a solid copper sphere. Once the charge has come to rest, the ELECTRIC POTENTIAL inside the sphere is found to be: w) zero x) uniform inside the sphere and equal to the electric potential on the surface of the sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared

Description : Ten coulombs of charge are placed on a solid copper sphere. Once the charge has come to rest, the ELECTRIC POTENTIAL inside the sphere is found to be: w) zero x) uniform inside the sphere and ... the sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared

Last Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC POTENTIAL ON THE SURFACE OF THE SPHERE 

When a charge moves through an electric circuit in the direction of an electric force it does one of the following four things. Does it: w) lose potential energy and gain kinetic energy x) gain potential energy and lose kinetic energy y) lose both potential and kinetic energy z) gain both potential and kinetic energy

Description : When a charge moves through an electric circuit in the direction of an electric force it does one of the following four things. Does it: w) lose potential energy and gain kinetic energy x) ... lose kinetic energy y) lose both potential and kinetic energy z) gain both potential and kinetic energy

Last Answer : ANSWER: W -- LOSE POTENTIAL ENERGY AND GAIN KINETIC ENERGY

A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Description : A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Last Answer : ANSWER: W -- CONSTANT

Five coulombs of charge are placed on a thin-walled conducting shell. Once the charge has come to rest, the electric potential inside the hollow conducting shell is found to be: w) zero x) uniform inside the sphere and equal to the electric potential on the surface of the sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared.

Description : Five coulombs of charge are placed on a thin-walled conducting shell. Once the charge has come to rest, the electric potential inside the hollow conducting shell is found to be: w) zero x) uniform ... sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared.

Last Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC OTENT

In a water lifting electric pump, we convert (1) Electrical energy into Potential energy (2) Kinetic energy into Electrical energy (3) Kinetic energy into Potential energy (4) Electrical energy into Kinetic energy

Description : In a water lifting electric pump, we convert (1) Electrical energy into Potential energy (2) Kinetic energy into Electrical energy (3) Kinetic energy into Potential energy (4) Electrical energy into Kinetic energy

Last Answer : Electrical energy into Potential energy

Electric Potential

Description : Electric Potential

Last Answer : If we apply external negative charge to one end of a metal conductor and an external positive charge to the end of conductor, a drift of free electrons or an electric current will flow through that conductor.

Electrostatics : Electric Field & Potential

Description : Electrostatics : Electric Field & Potential 

Last Answer : NPTEL Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.

In practice, Earth is chosen as a place of zero electric potential because it

Description : In practice, Earth is chosen as a place of zero electric potential because it 

Last Answer : In practice, Earth is chosen as a place of zero electric potential because it has almost constant potential

Is electric potential zero when electric field is zero?

Description : Is electric potential zero when electric field is zero?

Last Answer : Yes  .If  electric  field  is  zero  then  electric  potential  is  zero  ,  not  even  one.

Which instrument is used to measure electric current?

Description : Which instrument is used to measure electric current?

Last Answer : Ammeter

A galvanometer is an instrument used to measure ___________. A. thickness of galvanized metal B. resistance of electrical wiring insulation C. very small amounts of current or voltage D. quantity of galvans in an electric circuit

Description : A galvanometer is an instrument used to measure ___________. A. thickness of galvanized metal B. resistance of electrical wiring insulation C. very small amounts of current or voltage D. quantity of galvans in an electric circuit

Last Answer : Answer: C