ElectroMagnetic InductionHard
Question
When induced emf in inductor coil is 50% of its maximum value then stored energy in inductor coil in the given circuit will be : -


Options
A.2.5 mJ
B.5 mJ
C.15 mJ
D.20 mJ
Solution
E =
LI2 E =
L 
=
× 5 × 10-3 × (1)2
= 2.5 mJ.
=
= 2.5 mJ.
Create a free account to view solution
View Solution FreeMore ElectroMagnetic Induction Questions
A material rod, when placed in a strong magnetic field, aligns itself at right angles to the magnetic field. The nature ...A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure, The time varition ...When the current in a certain inductor coil is 5.0 A and is increasing at the rate of 10.0 A/s, the magnitude of potenti...In a uniform magnetic field of induction B a wire in the form of semicircle of radius r rotates about the diameter of th...A circular coil of mean radius of 7 cm and having 4000 turns is rotated about its and of the diameter at the rate of 180...