Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

The heat produced in a given resistance in a given time by the sinusoidal current 10 Sin ωt will be the same as that of a steady current of magnitude nearly :

Options:

 0.71 I0

 1.412 I0

I0

√I0

Correct Answer:

 0.71 I0

Explanation:

The r.m.s. value is Irms = I0/√2 = 0.71 I0