Question

100 joule of heat in each second in 4 ohm resistance . find potensial difference

Answer 1

Answer:

100J of heat is produced each second in a 4Ω resistance. Find the potential difference across the resistor. Thus, the potential difference across the resistor is 20V

Explanation:

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Answer 2

Answer:

Hence, potential difference = 20 V

Explanation:

Given,

Heat = 100 J (H)

Time = 1 second (t)

Resistance = 4 ohms (R)

Let the potential difference be 'V'.

By Joule's Law of Hearing, we get,

=> H = V^2/R × t

=> 100 = V^2 / 4 × 1

=> V^2 = 400

=> V = √400 = 20 V

Hence, potential difference = 20 V