Question

100 J heat is produced each second in a 4 ohm resistance. What is the potential difference across the resistor? *

(a) 10 V

(b) 20 V

(c) 30 V

(d) 40 V​

Answer 1

Answer:

Thus, the potential difference across the resistor is 20V.

Explanation:

The produced heat is given as,

H=I

2

Rt

100=I

2

×4×1

I=25A

The potential difference is given as,

V=IR

=5×4

=20V

Thus, the potential difference across the resistor is 20V.

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