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A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt battery. The energy stored in the coil is
Options
(a) 250 erg
(b) 250 J
(c) 125 erg
(d) 125 J
Correct Answer:
250 J
Explanation:
Energy U = (1/2) LI²
= (1/2) × 5 × (100/10)² = 250 J
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Ohm’s law valid
- The total energy of an electron in the first excited state of hydrogen atom
- The sum of the magnitudes of two forces acting at a point is 16 N
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
- 4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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