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An avarage induced e.m.f. of 1 V appears in a coil when the current in it is changed from 10 A in one direction to 10A in opposite direction in 0.5 sec. Self inductance of the coil is
Options
(a) 50 mH
(b) 25 mH
(c) 100 mH
(d) 75 mH
Correct Answer:
25 mH
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series
- The resistance of a carbon resistor of colour code Red-Red Green Silver is(in kΩ)
- In adiabatic expansion, product of PV
- A circuit contains an ammeter, a battery of 30 V and a resistance 40.8 ohm
- Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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