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100 J of heat is produced …

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100 J of heat is produced each second in a 4Ohm resistance. Find the potential difference across the resistor.

Posted by Lahari Yellanki 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

We know that,
Heat = V^2 × t / R
100J = V^2 × 1sec. / 4ohm
V^2 = 100J × 4ohm / 1sec.
V^2 = 400
V = ✓400
V = 20V

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