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1 unit electrical energy means 1000 joul...

1 unit electrical energy means 1000 joule electrical energy.

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1 unit = …… electric energy .

Explain electrical energy and power.

Knowledge Check

  • Which instrument is used to convert electrical energy into mechanical energy ?

    A
    Electric generator
    B
    Electric motor
    C
    Electric iron
    D
    Electric oven

  • Instrument in which fuel energy is converted into electrical energy is known as . . . . . .

    A
    Voltmeter
    B
    Electrochemical cell
    C
    electrolytic cell
    D
    Fuel cell

  • The temperature inside a refrigerator is t_2^@C and the room temperature is t_1^@C . The amount of heat delivered to the room for each joule of electrical energy consume ideally will be _____

    A
    `(t_2+273)/(t_1-t_2)`
    B
    `(t_1+t_2)/(t_2+273)`
    C
    `(t_1)/(t_1-t_2)`
    D
    `(t_1+273)/(t_1-t_2)`

    • Similar Questions

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    State whether the following statement are true or false : An electric motor converts mechanical energy into electrical enegy.

    Distinguish between electric potential and electric potential energy.

    An electric bulb of 100 W converts 3% of electrical energy into light energy.If the wavelength of light emitted is 6625 Å,the number of photons emitted in 1 s is……….. (h=6.625xx10^(-34))JS

    What is the commercial unit of electrical energy?

    A : When an electric charge is distributed between two bodies , no charge is destroyed but the electrostatic energy decreases. R : Certain energy is dissipated in the form of heat.

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