Ques A solenoid of inductance 2H carries a current of 1 A What is the magnetic energy stored - Physics - Electromagnetic Induction

Question

Ques A solenoid of inductance 2H carries a current
of 1 A What is the magnetic energy stored in a solenoid ?

(1) 2 J (2) 1 J
(3) 4 J (4) 5

Pintu B. · Accepted Answer

Dear Student ,
The magnetic energy of the solenoid is :
E=12LI2=12×2×12=1 J
Regards

Ques. A solenoid of inductance 2H carries a current of 1 A. What is the magnetic energy stored in a solenoid ? (1) 2 J (2) 1 J (3) 4 J (4) 5