Verified Solution • 2025–26 Session
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QNEET-2023-Ph-227: NEET 2023 Physics - Class 12 NEET-2023-Ph-227 Solution: The magnetic energy stored in an inductor of inductance \(4 H\) …
The magnetic energy stored in an inductor of inductance carrying a current of 2 A is: 4 mJ 8 mJ 8 4
Multiple Choice Options
- A 4 mJ
- B 8 mJ
- C 8 _ J
- D 4 _ J
Step-by-Step Verified Solution
The formula for calculating the magnetic energy stored in an inductor is given by:
E = 1 2 L I 2
where:
E is the energy stored (in joules, J),
L is the inductance of the inductor (in henrys, H),
I is the current flowing through the inductor (in amperes, A).
Plugging the given values into the formula:
E = 1 2 _ 4 _ H _ ( 2 A ) 2
E = 1 2 _ 4 _ 10 _ 6 H _ 4 A 2
E = 2 _ 10 _ 6 H _ 4
E = 8 _ 10 _ 6 J
Hence, the energy stored in the inductor is 8 _ J .