Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

Options:

a

b

c

d

Correct Answer:

c

Explanation:

$ P = V_{rms}I_{rms}cos\phi = \frac{100V}{\sqrt 2} \frac{100mA}{\sqrt 2} \frac{1}{2} = 2.5W$