Question

400 J of heat is produced each second in a 4 Ω resistance. Find the potential difference across the resistor.​

Answer 1

Answer:

40V

Explanation:

• H=400J
• T=1sec
• R = 4 ohm

H = I*2Rt

400= I*(4)(1)

400= 4I*2

400/4= I*2

root of 100 = I

I = 10 A

V= IR

V= 10(4)

V= 40 V