Energy and Power

Q1: When the current through a 12 k resistor is 8 mA, the power is

A 7.68 mW

B 768 mW

C 7.68 W

D 76.8 W

ANS:B - 768 mW

W = I^2R.
W = 8^2 * 12000,
W = 768000/1000,
W = 768mW.

Share :

img not found

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.