Question

If resistance is 4 and time is 1 heat produced by conductor is 100 j what is potential difference

Answer 1

we know that,
Heat =V^2 × t / R
100 J =V^2 × 1 Sec. / 4
V^2 = 100 J × 4 / 1 Sec
V^2 = 400
V =
$\sqrt{400}$
V =20 V