Question

200 J heat is produced each second in a 80 resistance find the potential difference a cross the resister​

Answer 1

Answer:Answer:

40 V is the correct answer.

Explanation:

⇒ Power = (Voltage)²÷Resistance

⇒ 200 J × 1 sec = (Voltage)²÷8 Ω

⇒ (Voltage)² = 200 W × 8 Ω

⇒ Voltage = √1600

                 = 40 V                  ←ANSWER

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Explanation: