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The magnetic flux linked with a coil at any instant t is given by ?= (5t³ – 100t + 300). The e.m.f induced in the coil at t=2 sec is
Options
(a) 40 V
(b) -40 V
(c) 140 V
(d) 300 V
Correct Answer:
40 V
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
- A spherical conductor of radius 2 m is charged to a potential of 120 V. It is now
- A wire of resistance 4 ohm is stretched to twice its original length.
- In a common emitter (CE) amplifier having a voltage gain G, the transistor
- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
- A carnot’s engine operates with source at 127° C and sink at 27°C
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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