Question

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

Answer 1

hello friend...!!

• According to the question we should calculate the potential difference

given :

1 ) R = 4 ohm

2) H = 100 joules

3) T = 1 second

we know,

H = I^2 R T

implies

I^2 = H / RT

I^2 = 100 / 4

I =√25

I = 5 ampere

therefore ,

we know that. V = I R

therefore

V = 5 X 4

V = 20v

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Hope it is useful...!!!