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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: - The height at which the weight of a body becomes 1/16 th, its weight
- An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- Light of wavelength λ from a point source falls on a small circular obstacle
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The height at which the weight of a body becomes 1/16 th, its weight
- An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- Light of wavelength λ from a point source falls on a small circular obstacle
- The two ends of a rod of length L and a uniform cross-sectional area
- Watt hour mter measures
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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