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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: - According to photon theory of light which of the following physical quantities,
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- An aeroplane is flying horizontally with a velocity of 216 km/h at a height of 1960 m.
- 40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- According to photon theory of light which of the following physical quantities,
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- An aeroplane is flying horizontally with a velocity of 216 km/h at a height of 1960 m.
- 40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant
- In a double slit experiment, the two slits are 1mm apart and the screen is placed 1 m
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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