Question

100 joules of heat is produced per second in a 4ohm resistor what is the potential difference across the resistor​

Answer 1

P=i2r or v2/r

100=v2/4

V2=400

V=20 ohm

Answer 2

HeRe Is Your Ans

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Given =>

H = 100 J

T = 1 s

R = 4 Ohm

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To Find =>

V = ?

I = ?

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We Know That ,

H = I²RT

I² = H / RT

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I² = 100 / 4 × 1

I = √25

I = 5 Amp

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R = V / I

V= 5 × 4

V = 20 Volt

Hence , 20 volt is the potential difference across the resistor

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