AP EAMCET202018 Sep 2020Morning ShiftPhysicsElectromagnetic InductionActual
The energy stored in a (50 mH ) inductor carrying a current of (4 ~A ) is
Options
- A(0.4 ~J )
- B(4.0 ~J )
- C(0.8 ~J )
- D(0.04 ~J )
Correct answer
A. (0.4 ~J )
Step-by-step solution
Given, ( aligned L=50 mH & =5 10⁻² H I & =4 ~A aligned ) ( ) Energy stored in the inductor is given as (E= 1 2 L I^2= 1 2 5 10⁻² 4^2=0.4 ~J )