The magnetic potential energy stored in a certain inductor is 25 mJ , when the current in the inductor is 60 mA . This inductor is of inductance: - Physics MCQ NEET (UG) 2018 2026 | ExamTest.live

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The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA . This inductor is of inductance:

Solution & Step-by-step Explanation

The energy stored in an inductor (U) is given by: U = \frac{1}{2} L I^{2} Substitute the values: 25 \times 1 0^{- 3} = \frac{1}{2} \times L \times (60 \times 1 0^{- 3})^{2} 50 \times 1 0^{- 3} = L \times 3600 \times 1 0^{- 6} 50 \times 1 0^{- 3} = L \times 3.6 \times 1 0^{- 3} L = \frac{50}{3.6} \approx 13.89 H

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The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA . This inductor is of inductance:

1.389 H

138.88 H

0.138 H

13.89 H

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