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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: - An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- A milli ammeter of range 10 mA has a coil of resistance 1 ohm
- If the earth shrink such that its mass does not change but radius decreases to one
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- A milli ammeter of range 10 mA has a coil of resistance 1 ohm
- If the earth shrink such that its mass does not change but radius decreases to one
- A thin wire of length L and mass M is bent to form a semicircle.
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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