Answer :

Here, it is given H = 100J, t = 1sec, R = 4ohms,

We know that according to Joule's law of heating


H = I2RT


100 = I2×4×1


100/4 = I2


I = 5amp


Again we know that


V = IR


V = 5X4


= 20V


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses