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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
Related Questions: - When volume of a system is increased two times and temperature is decreased
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When volume of a system is increased two times and temperature is decreased
- If temperature of gas increases from 27°C to 927°C, the kinetic energy will be
- The average power dissipated in AC circuit is 2 W. If a current flowing through
- The relationship between decay constant λ and half-life T of a radioactive substance is
- An ideal spring with spring constant K is hung from the ceiling and a block of mass
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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