Question

define electric power drive relation between Power potential difference and resistance
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Answer 1

Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per Elevtric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries.......

Relation between Power , Pd and Resistance is.. P = V^2 / R ......

where ,

p = power

V = Pd

R = resistance ...

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Answer 2

as we know

V(potential difference)=work done / no.ofcharge

V×no.ofcharge=work done

now work done is the

electrical energy used

now if we divide it by t(time)

we will get power

because power is rate of energy consumption

so

V×C/t=E/t

but we know

that

charge per unit time is ELECTRIC CURRENT

so C/t=I

V×I=P

according to OHM'S LAW

V/R=I

SO

P=V×V/R

P=V^2/R

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