Question

The magnetic energy stored in an inductor of inductance 4 µH carrying a current of 2 A is ______.

पर्याय

• 4 mJ

• 8 mJ

• 8 μJ

• 4 μJ

Answer 1

The magnetic energy stored in an inductor of inductance 4 µH carrying a current of 2 A is 8 μJ.

Explanation:

Magnetic energy stored in an inductor is \[\frac {1}{2}\]LI² = \[\frac {1}{2}\] × (4μH) × 2² = 8 μJ.