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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 length of an elastic string is a metre when the longitudinal tension is 4N and b
- B is doped in Si or Ge, then we will get
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The length of an elastic string is a metre when the longitudinal tension is 4N and b
- B is doped in Si or Ge, then we will get
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- Dispersion of light is caused due to
- Two straight wires each 10cm long are parallel to one another and seperated by 2 cm.
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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