A kilowatt-hour is unit of – (1) Energy (2) Power (3) Electric charge (4) Electric current

A kilowatt-hour is unit of – (1) Energy (2) Power (3) Electric charge (4) Electric current
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(1) Energy Explanation: Work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of nature, along a path of a certain length. In the International System of Units (SI), energy is measured in joules, but in many fields other units, such as kilowatt-hours and kilocalories, are customary.
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A kilowatt-hour is unit of (1) Energy (2) Power (3) Electric charge (4) Electric current

Description : A kilowatt-hour is unit of (1) Energy (2) Power (3) Electric charge (4) Electric current

Last Answer : Energy

'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.

Kilowatt-hour is a unit of------? A. Power B. Electric Current C. Energy (Answer) D. Time E. None of these

Description : Kilowatt-hour is a unit of------? A. Power B. Electric Current C. Energy (Answer) D. Time E. None of these

Last Answer : C. Energy (Answer)

Kilowatt-hour (KWH) is the unit of - (1) power (2) resistance (3) resistivity (4) energy

Description : Kilowatt-hour (KWH) is the unit of - (1) power (2) resistance (3) resistivity (4) energy

Last Answer : (4) energy Explanation: The kilowatt hour (symbol kWh, kW h or kW h) is a unit of energy equal to 3.6 megajoules. If the energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt hours is the power in kilowatts multiplied by the time in hours.

Kilowatt-hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum

Description : Kilowatt-hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum

Last Answer : (1) Energy Explanation: The kilowatt hour, or kilowatthour, is a unit of energy equal to 1000 watt hours or 3.6 mega-joules For constant power, energy in watt hours is the product of ... kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utilities.

Kilowatt -hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum

Description : Kilowatt -hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum

Last Answer : Energy

The unit of electrical power is – (1) Bolt (2) Watt (3) Kilowatt hour (4) Ampere

Description : The unit of electrical power is – (1) Bolt (2) Watt (3) Kilowatt hour (4) Ampere

Last Answer : (2) Watt Explanation: Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Watt is named after the Scottish engineer James Watt who invented the Newcomen Steam Engine.

The unit of electrical power is (1) Bolt (2) Watt (3) Kilowatt hour (4) Ampere

Description : The unit of electrical power is (1) Bolt (2) Watt (3) Kilowatt hour (4) Ampere

Last Answer : Bolt

What is the unit of kilowatt hour ?

Description : What is the unit of kilowatt hour ?

Last Answer : Kilowatt hour is a unit of work and energy.

A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year? w) $50.00 x) $10.00 y) $5.00 z) $1.00

Description : A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year? w) $50.00 x) $10.00 y) $5.00 z) $1.00 

Last Answer : ANSWER: X -- $10.00 

Electrical energy is measured in a. watt b. horse power c. kilo watt d. kilowatt hour

Description : Electrical energy is measured in a. watt b. horse power c. kilo watt d. kilowatt hour

Last Answer : d. kilowatt hour

Kilowatt-hour is the unit of

Description : Kilowatt-hour is the unit of

Last Answer : Electricity

What is a kilowatt hour ?

Description : What is a kilowatt hour ?

Last Answer : One kilowatt hour is the amount of energy consumed by a device with one kilowatt capacity. Usually a unit of kilowatt hour is used for calculating electricity. 1 kWh = 3.8 × 10 ৬ joules.

One Kilowatt hour is equal to— (1) 3.6 Mega Joule (2) 3.8 Mega Joule (3) 3.2 Mega Joule (4) 4.0 Mega Joule

Description : One Kilowatt hour is equal to— (1) 3.6 Mega Joule (2) 3.8 Mega Joule (3) 3.2 Mega Joule (4) 4.0 Mega Joule

Last Answer : (1) 3.6 Mega Joule Explanation: The energy 1 kilowatt-hour (kWh) is 3600000 joules or 3.6 mega joule. In physics, energy is an indirectly observed quantity that is often understood as ... overly simplified definition, as the laws of thermodynamics demonstrate that not all energy can perform work.

A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?

Description : A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?

Last Answer : ANSWER: 10 CENTS

One Kilowatt hour is equal to— (1) 3.6 Mega Joule (2) 3.8 Mega Joule (3) 3.2 Mega Joule (4) 4.0 Mega Joule

Description : One Kilowatt hour is equal to— (1) 3.6 Mega Joule (2) 3.8 Mega Joule (3) 3.2 Mega Joule (4) 4.0 Mega Joule

Last Answer : 3.6 Mega Joule

In an electric field, energy per unit positive charge is A. voltage B. current C. frequencyD. resistance

Description : In an electric field, energy per unit positive charge is A. voltage B. current C. frequency D. resistance

Last Answer : voltage

Assertion : Kilovol-ampere (kVA) and kilowatt-hour have the same dimensions. Reason : Both are the units of energy.

Description : Assertion : Kilovol-ampere (kVA) and kilowatt-hour have the same dimensions. Reason : Both are the units of energy.

Last Answer : Assertion : Kilovol-ampere (kVA) and kilowatt-hour have the same dimensions. Reason : Both are the ... . D. If both Assertion and Reason are false.

One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour D. 1 our and 15 minutes

Description : One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour D. 1 our and 15 minutes

Last Answer : ANSWER: C

One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour 24 D. 1 our and 15 minutes

Description : One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour 24 D. 1 our and 15 minutes

Last Answer : ANSWER: C

One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour D. 1 our and 15 minutes

Description : One kilowatt-hour is the amount of electrical energy that is consumed by 1000 watt appliance in ____. A. 30 minutes B. 45 minutes C. 1 hour D. 1 our and 15 minutes

Last Answer : ANSWER: C

One kilowatt hour is the amount of energy delivered during a. one second b. one day c. one minute d. one hour

Description : One kilowatt hour is the amount of energy delivered during a. one second b. one day c. one minute d. one hour

Last Answer : b. one day

One kilowatt hour of electrical energy is the same as

Last Answer : One kilowatt hour of electrical energy is the same as  36 x 105 joules.

How much do you pay per kilowatt-hour (kwh) for your electricity?

Description : How much do you pay per kilowatt-hour (kwh) for your electricity?

Last Answer : 1. there are three levels of pricing, depending on how much is used 0-700 =0.093 700-1000=0.157 over1000 = 0.175 per KWH in the summer. This varies seasonally 2. Northern California 3.Natural ... therms (seasonal) 0.968 above that 1.213 3. Gasoline for automobile $2.83.9 (yesterday, changes daily)

How many joules is equal to 1 kilowatt hour ?

Description : How many joules is equal to 1 kilowatt hour ?

Last Answer : 1 kilowatt = 1000 joules.

One kilowatt-hour is?

Description : One kilowatt-hour is?  (A) 3.6 mega joules (B) 2.6 mega joules (C) 1.6 mega joules (D) None of the above

Last Answer : One kilowatt-hour is 3.6 mega joules

Which of the following is not the unit of power? (A) kW (kilowatt) (B) hp (horse power) (C) kcal/sec (D) kcal/kg sec

Description : Which of the following is not the unit of power?  (A) kW (kilowatt)  (B) hp (horse power)  (C) kcal/sec  (D) kcal/kg sec 

Last Answer : (D) kcal/kg sec 

In the illustrated electronic governor, the circuit card connected to the potential and current transformers is for ________. EL-0046 A. increasing the signal strength to the governor to maintain constant engine speed with increased load B. send a kilowatt signal to the metering circuit C. shutting down the prime mover in the event of reverse power to protect from motorization D. conditioning the load through the use of a magnetic amplifier current transformer

Description : In the illustrated electronic governor, the circuit card connected to the potential and current transformers is for ________. EL-0046 A. increasing the signal strength to the governor to ... from motorization D. conditioning the load through the use of a magnetic amplifier current transformer

Last Answer : Answer: A

Energy transferred per unit charge is A. e.m.f B. current C. potential difference D. conventional current

Description : Energy transferred per unit charge is A. e.m.f B. current C. potential difference D. conventional current

Last Answer : potential difference

The S.I. unit of electric charge is – (1) ampere (2) coulomb (3) e.s.u (4) Kelvin

Description : The S.I. unit of electric charge is – (1) ampere (2) coulomb (3) e.s.u (4) Kelvin

Last Answer : (2) coulomb Explanation: The SI unit of quantity of electric charge is the coulomb, which is equivalent to about 6.242x10^18 e (e is the charge of a proton). Hence, the charge of ... of charge that has passed through the cross section of an electrical conductor canying one ampere within one second.

The S.I. unit of electric charge is : (1) ampere (2) coulomb (3) e.s.u (4) kelvin

Description : The S.I. unit of electric charge is : (1) ampere (2) coulomb (3) e.s.u (4) kelvin

Last Answer : coulomb

When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the battery amp-hour rating C. the source of power for charging should be 2.5 volts per cell D. gassing within the battery decreases when nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Description : When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the ... nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Last Answer : Answer: C

Where an electric charge experiences a force, there is an A. electric field B. magnetic field C. electric current D. conventional current

Description : Where an electric charge experiences a force, there is an A. electric field B. magnetic field C. electric current D. conventional current

Last Answer : electric field

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

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

Direction of conventional current is A. direction of neutron flow B. direction of electron flow C. direction of flow of positive charge D. same as that of electric current

Description : Direction of conventional current is A. direction of neutron flow B. direction of electron flow C. direction of flow of positive charge D. same as that of electric current

Last Answer : direction of flow of positive charge

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 

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

In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved: w) the net electric charge x) the total mass-energy y) the number of protons z) the number of nucleons

Description : In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved: w) the net electric charge x) the total mass-energy y) the number of protons z) the number of nucleons

Last Answer : ANSWER: Y -- THE NUMBER OF PROTONS

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

Calculate the energy released in kilowatt-hours when 100g of `._(3)^(7)Li` are converted into `._(2)^(4)He` by proton bombardment. Mass of `._(3)^(7)L

Description : Calculate the energy released in kilowatt-hours when 100g of `._(3)^(7)Li` are converted into `._(2)^(4)He` by proton bombardment. Mass of `._(3)^(7)L

Last Answer : Calculate the energy released in kilowatt-hours when 100g of `._(3)^(7)Li` are converted into `. ... = 1.0081 amu. Write down the nuclear reaction.

Kilowatt One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt D. 0.5 kilowatt

Description : Kilowatt One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt D. 0.5 kilowatt

Last Answer : ANSWER: A

One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt D. 0.5 kilowatt

Description : One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt D. 0.5 kilowatt

Last Answer : ANSWER: A

One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt 21 D. 0.5 kilowatt

Description : One thousand watt power is called as _____. A. 1.0 kilowatt B. 0.8 kilowatt C. 1.5 kilowatt 21 D. 0.5 kilowatt

Last Answer : ANSWER: A

If the excitation of an alternator operating in parallel is decreased below normal, its _____________. A. power factor will change in the lagging direction B. power factor will change in the leading direction C. ampere load will be greatly increased D. kilowatt load will be greatly decreased

Description : If the excitation of an alternator operating in parallel is decreased below normal, its _____________. A. power factor will change in the lagging direction B. power factor will change in the leading direction C. ampere load will be greatly increased D. kilowatt load will be greatly decreased

Last Answer : Answer: B

A three-phase alternator is developing 300 amps, with a 0.8 power factor, at 450 volts. The true indicated power on the kilowatt meter, located on the main switchboard, will be ____________. A. 133 kw B. 155 kw C. 187 kw D. 212 kw

Description : A three-phase alternator is developing 300 amps, with a 0.8 power factor, at 450 volts. The true indicated power on the kilowatt meter, located on the main switchboard, will be ____________. A. 133 kw B. 155 kw C. 187 kw D. 212 kw

Last Answer : Answer: C

After closing the circuit breaker to place two similar alternators in parallel, the NEXT step is to balance the _____________. A. power factor B. voltage load C. kilowatt load D. ampere load

Description : After closing the circuit breaker to place two similar alternators in parallel, the NEXT step is to balance the _____________. A. power factor B. voltage load C. kilowatt load D. ampere load

Last Answer : Answer: C

Why is it desirable to operate paralleled AC generators at the same power factor? A. Circulating currents are kept to a minimum. B. Field excitation losses are kept to a minimum. C. Generator rotors will have a lesser tendency to hunt. D. Because a power factor increase will decrease kilowatt output.

Description : Why is it desirable to operate paralleled AC generators at the same power factor? A. Circulating currents are kept to a minimum. B. Field excitation losses are kept to a minimum. C. Generator ... will have a lesser tendency to hunt. D. Because a power factor increase will decrease kilowatt output.

Last Answer : Answer: A

If the excitation is increased to one of two alternators operating in parallel, the _____________. A. power factor will change in the lagging direction B. power factor will change in the leading direction C. kilowatt load will be greatly increased D. ampere load will be greatly decreased

Description : If the excitation is increased to one of two alternators operating in parallel, the _____________. A. power factor will change in the lagging direction B. power factor will change in the leading direction C. kilowatt load will be greatly increased D. ampere load will be greatly decreased

Last Answer : Answer: A

To equalize the power factor of two alternators operating in parallel, the ____________. A. field excitation of both units is adjusted B. governors of both units are adjusted C. phase sequence is altered D. kilowatt load is evenly divided

Description : To equalize the power factor of two alternators operating in parallel, the ____________. A. field excitation of both units is adjusted B. governors of both units are adjusted C. phase sequence is altered D. kilowatt load is evenly divided

Last Answer : Answer: A