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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
- The speed of electromagnetic waves in vaccum is equal to
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- Vessel A is filled with hydrogen while vessel B, whose volume is
- In the phenomenon of electric discharge through gases at low pressure,
- A 1kg stone at the end of 1 m long string is whirled in a vertical circle at constant speed
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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