If conductor pass energy then my question is that heat energy change int electrical of wire?

If conductor pass energy then my question is that heat energy change int electrical of wire?
by

1 Answer

Answer :

Conductor losses or "I squared R losses" occur when electric current flows through a conductor. Conductor loss in watts equals the square of the current in amperes (I2) multiplied by the resistance of the conductor in ohms (R), and each watt of electrical energy is equal to 1 joule of heat.
by

Related questions

Copper wires are generally used for electrical power transmission instead of iron wire because (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Description : Copper wires are generally used for electrical power transmission instead of iron wire because (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Last Answer : (3) copper is a better conductor of electricity than iron Explanation: Copper is generally preferred for electrical power transmission instead of iron because of its high electrical conductivity and low resistivity.

Copper wires are generally used for electrical power transmission instead of iron wire because : (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Description : Copper wires are generally used for electrical power transmission instead of iron wire because : (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron 

Last Answer : copper is a better conductor of electricity than iron

The resistance of a few meters of wire conductor in closed electrical circuit is?

Description : The resistance of a few meters of wire conductor in closed electrical circuit is?

Last Answer : The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.

Copper is often used as an electrical conductor because it _______________. A. has high resistance at low temperatures B. has a highly polished surface C. is able to pass current with little opposition D. holds insulation together well

Description : Copper is often used as an electrical conductor because it _______________. A. has high resistance at low temperatures B. has a highly polished surface C. is able to pass current with little opposition D. holds insulation together well

Last Answer : Answer: C

Which of the following is not a desirable property of a refrigerant (a) highmisibility with oil (b) low boiling point (c) good electrical conductor (d) large latent heat

Description : Which of the following is not a desirable property of a refrigerant (a) highmisibility with oil (b) low boiling point (c) good electrical conductor (d) large latent heat

Last Answer : Ans: c

Graphite is a good (A) Thermal & electrical insulator (B) Conductor of heat (C) Conductor of electricity (D) Both (B) & (C)

Description : Graphite is a good (A) Thermal & electrical insulator (B) Conductor of heat (C) Conductor of electricity (D) Both (B) & (C)

Last Answer : (D) Both (B) & (C)

Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is (A) IR (B) I 2R (C) IR 2 (D) I 2R

Description : Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is (A) IR (B) I 2R (C) IR 2 (D) I 2R

Last Answer : (B) I 2R

A resistance of `4 Omega` and a wire of length 5 meters and resistance `5 Omega` are joined in series and connected to a cell of e.m.f. `10 V` and int

Description : A resistance of `4 Omega` and a wire of length 5 meters and resistance `5 Omega` are joined in series and connected to a cell of e.m.f. `10 V` and int

Last Answer : A resistance of `4 Omega` and a wire of length 5 meters and resistance `5 Omega` are joined in series and connected ... `3.0V` C. `0.67V` D. `1.33V`

If electrical conductivity increases with the increase of temperature of a substance, then it is a: (1) Conductor (2) Semiconductor (3) Insulator (4) Carborator

Description : If electrical conductivity increases with the increase of temperature of a substance, then it is a: (1) Conductor (2) Semiconductor (3) Insulator (4) Carborator

Last Answer : (2) Semiconductor Explanation: A solid substance that has conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects

If electrical conductivity increases with the increase of temperature of a substance, then it is a (1) Conductor (2) Semiconductor (3) Insulator (4) Carborator

Description : If electrical conductivity increases with the increase of temperature of a substance, then it is a (1) Conductor (2) Semiconductor (3) Insulator (4) Carborator

Last Answer : (2) Semiconductor Explanation: A solid substance that has conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects.

Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Description : Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Last Answer : EPROM

Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Description : Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Last Answer : c. EPROM

Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Description : Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals? a. CAM b. ROM c. EPROM d. Abacus

Last Answer : c. EPROM

If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the corresponding size of conductor will be most economical. This statement is known as (a) Kelvin's law (b) Ohm's law (c) Kirchhoffs law (d) Faraday's law (e) none of the above

Description : If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the ... (b) Ohm's law (c) Kirchhoffs law (d) Faraday's law (e) none of the above

Last Answer : (a) Kelvin's law

What is a machine that produces electrical energy by turning coils of wire around powerful magnets?

Description : What is a machine that produces electrical energy by turning coils of wire around powerful magnets?

Last Answer : Need answer

Is a copper wire a insulator or conductor?

Description : Is a copper wire a insulator or conductor?

Last Answer : conductor

Tightly knit metal braid wire can be used with a printed circuit board when ___________. A. conductor flexibility is required B. desoldering components in the circuit C. electrically produced magnetic fluxes would cause inaccuracies in adjacent components D. reactance in the circuit must be kept to a minimum

Description : Tightly knit metal braid wire can be used with a printed circuit board when ___________. A. conductor flexibility is required B. desoldering components in the circuit C. electrically produced magnetic ... cause inaccuracies in adjacent components D. reactance in the circuit must be kept to a minimum

Last Answer : Answer: B

A single conductor running from the transmitter to the antenna. A. RG-8/U B. Single line wire C. Twin-lead D. MIcrostrip

Description : A single conductor running from the transmitter to the antenna. A. RG-8/U B. Single line wire C. Twin-lead D. MIcrostrip

Last Answer : B. Single line wire

State why it is important for you to consider the ambient (surrounding) temperature of a conductor when selecting wire size.

Description : State why it is important for you to consider the ambient (surrounding) temperature of a conductor when selecting wire size.

Last Answer : The heat surrounding the conductor is an important part of total conductor heating.

A wire having very high value of conductance is said to be a. very good conductor b. moderately good conductor c. an insulator d. None

Description : A wire having very high value of conductance is said to be a. very good conductor b. moderately good conductor c. an insulator d. None

Last Answer : a. very good conductor

lf the wire which is vertical to this page has electron flow downwards the conductor will have

Description : lf the wire which is vertical to this page has electron flow downwards the conductor will have

Last Answer : lf the wire which is vertical to this page has electron flow downwards the conductor will have a counter-clockwise field in the plane of the paper

The conductor of a 10 km long, single phase, two wire line are separated...

Description : The conductor of a 10 km long, single phase, two wire line are separated by a distance of 1.5 m. The diameter of each conductor is 1 cm, If the conductors are of copper, the inductance of the circuit is

Last Answer : The conductor of a 10 km long, single phase, two wire line are separated by a distance of 1.5 m. The diameter of each conductor is 1 cm, If the conductors are of copper, the inductance of the circuit is 23.8 mH.

If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

Description : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

Last Answer : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm.

A permeable substance is one (a) which is a good conductor (6) which is a bad conductor (c) which is a strong magnet (d) through which the magnetic lines of force can pass very easily

Description : A permeable substance is one (a) which is a good conductor (6) which is a bad conductor (c) which is a strong magnet (d) through which the magnetic lines of force can pass very easily

Last Answer : (d) through which the magnetic lines of force can pass very easily

5xl016 electrons pass across the section of a conductor in 1 minute 20 sec. The current flowing is

Description : 5xl016 electrons pass across the section of a conductor in 1 minute 20 sec. The current flowing is 

Last Answer : 5xl016 electrons pass across the section of a conductor in 1 minute 20 sec. The current flowing is  0.1 mA.

What is the unit of electrical resistance of a conductor?

Description : What is the unit of electrical resistance of a conductor?

Last Answer : Answer: Ohm

Is vanadium a good electrical conductor?

Description : Is vanadium a good electrical conductor?

Last Answer : Vanadium has slightly less resisitivity than lead, but approximately 11 times that of copper. It is not normally used as an electrical conductor, but is used in redox flow batteries and certain semiconductor applications.

Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Description : Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Last Answer : (4) outer surface of the body Explanation: In all conductors, charges reside on the surface. The reason for this is that conductors have free electrons, that is, the electrons are loosely ... field just, outside the conductor is perpendicular to the surface and that the field inside is zero.

Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Description : Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Last Answer : (4) outer surface of the body Explanation: In all conductors, charges reside on the surface. The reason for this is that conductors have free electrons, that is, the electrons are loosely ... field just, outside the conductor is perpendicular to the surface and that the field inside is zero.

Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Description : Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Last Answer : (1) Graphite Explanation: Graphite is a good conductor of electricity because its electrons are delocalized or free to move around. Each carbon atom in graphite is directly linked to only three carbon atoms ... and the fourth is relatively free and can move from one car-bon atom to the other.

A device which is used to limit the current in an electrical circuit is called a - (1) Grid (2) Fuse (3) Hub (4) Conductor

Description : A device which is used to limit the current in an electrical circuit is called a - (1) Grid (2) Fuse (3) Hub (4) Conductor

Last Answer : (2) Fuse Explanation: A fuse places a limit on the amount of current that can be drawn by an electric circuit by opening (blowing or melting) when the current exceeds a preset limit. This protects the circuit and the surroundings from fire or damage in the case of an overload or short circuit.

Coast Guard Regulations (46 CFR) state that the minimum conductor size allowed for use in flexible electrical cords is ____________. A. 10 AWG B. 14 AWG C. 18 AWG D. 20 AWG

Description : Coast Guard Regulations (46 CFR) state that the minimum conductor size allowed for use in flexible electrical cords is ____________. A. 10 AWG B. 14 AWG C. 18 AWG D. 20 AWG

Last Answer : Answer: C

A current-carrying conductor making electrical contact with a wiring conduit will be indicated by a _____________. A. high switchboard wattmeter reading B. totally dark switchboard ground detecting light C. low switchboard wattmeter reading D. all of the above

Description : A current-carrying conductor making electrical contact with a wiring conduit will be indicated by a _____________. A. high switchboard wattmeter reading B. totally dark switchboard ground detecting light C. low switchboard wattmeter reading D. all of the above

Last Answer : Answer: B

A current carrying conductor making an electrical contact with a wiring metal conduit is indicated by a _____________. A. low switchboard wattmeter reading B. reading of 1.0 on the power factor meter C. high switchboard voltmeter reading D. totally darkened switchboard ground-detecting light

Description : A current carrying conductor making an electrical contact with a wiring metal conduit is indicated by a _____________. A. low switchboard wattmeter reading B. reading of 1.0 on the power factor meter C. high switchboard voltmeter reading D. totally darkened switchboard ground-detecting light

Last Answer : Answer: D

A 'dielectric' is a/an ________________. A. electrical insulator B. current flow C. good conductor D. semiconductor material

Description : A 'dielectric' is a/an ________________. A. electrical insulator B. current flow C. good conductor D. semiconductor material

Last Answer : Answer: A

Basic electrical motor action depends on _______________. A. a conductor rotated within a magnetic field B. a current carrying conductor placed in a magnetic field C. the relative force of the commutator and commutating poles D. the relative force of the armature and interpoles

Description : Basic electrical motor action depends on _______________. A. a conductor rotated within a magnetic field B. a current carrying conductor placed in a magnetic field C. the relative force of the commutator and commutating poles D. the relative force of the armature and interpoles

Last Answer : Answer: B

Diamond is a good thermal conductor. But it is an excellent electrical insulator. How?

Description : Diamond is a good thermal conductor. But it is an excellent electrical insulator. How?

Last Answer : Diamond crystal is a three-dimensional network of carbon atoms. All carbon atoms in the network are strongly bonded by carbon-carbon covalent bonds. Therefore diamond crystal has a highly ... in diamond crystal to ficilitate electrial conduction. Thus diamond is an excellent electrical insulator.

The electrical conductivity of a __________ decreases with rise in temperature. (A) Metal/alloy (B) Semi-conductor (C) Dielectric (D) None of these

Description : The electrical conductivity of a __________ decreases with rise in temperature. (A) Metal/alloy (B) Semi-conductor (C) Dielectric (D) None of these

Last Answer : (A) Metal/alloy

What is an electrical conductor?

Description : What is an electrical conductor?

Last Answer : Ans: a) An electrical conductor allows electricity to pass through it. 

Pick out the wrong statement. (A) Lead can creep under its own weight at room temperature (B) The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement (C) Recrystallisation temperature decreases with decrease in strain in a cold worked metal (D) With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase

Description : Pick out the wrong statement. (A) Lead can creep under its own weight at room temperature (B) The electrical conductivity of gold is considerably reduced by alloying additions due to ... metal (D) With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase

Last Answer : (C) Recrystallisation temperature decreases with decrease in strain in a cold worked metal

With increase in temperature, the electrical conductivity of a __________ decreases. (A) Semi-conductor (B) Metal or alloy (C) Dielectric (D) None of these

Description : With increase in temperature, the electrical conductivity of a __________ decreases. (A) Semi-conductor (B) Metal or alloy (C) Dielectric (D) None of these

Last Answer : (A) Semi-conductor

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor) (A) A (B) l (C) A2 (D) Both 'a' & 'b'

Description : Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor) (A) A (B) l (C) A2 (D) Both 'a' & 'b'

Last Answer : (D) Both 'a' & 'b'

With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor

Description : With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor

Last Answer : Option A

. With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor

Description : . With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor

Last Answer : Option A

What is the purpose of the green conductor in a power tool or electrical appliance cable?

Description : What is the purpose of the green conductor in a power tool or electrical appliance cable?

Last Answer : To prevent electrical shock to the operator in case there is an electrical short to the frame of the appliance or too.

An electrical discharge ionizing the air around a conductor is called: w) Flux x) Corona y) Ozone z) Field

Description : An electrical discharge ionizing the air around a conductor is called: w) Flux x) Corona y) Ozone z) Field

Last Answer : ANSWER: X -- CORONA

Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Description : Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal 

Last Answer : Graphite

Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Description : Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Last Answer : outer surface of the body

A device which is used to limit the current in an electrical circuit is called a (1) Grid (2) Fuse (3) Hub (4) Conductor

Description : A device which is used to limit the current in an electrical circuit is called a (1) Grid (2) Fuse (3) Hub (4) Conductor 

Last Answer : Fuse

Explain with justification two uses of each of two following as an electrical conductor: (i) Brass (ii) Silver

Description : Explain with justification two uses of each of two following as an electrical conductor: (i) Brass (ii) Silver 

Last Answer :  (i) Brass:  Brass is an alloy of copper (60% ) and zinc ( 40%) ; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. Brasses set ... electrical conductor:  1) In switches to minimize contact resistance 2) In measuring instruments 3) In relays