| ⇦ | 
| ⇨ |
The coefficient of mutual inductance of two coils is 6 mH. If the current flowing in one is 2A, the induced e.m.f. in the second coil will be
Options
(a) Zero
(b) 3 V
(c) 3 mV
(d) 2 mV
Correct Answer:
Zero
Explanation:
E.M.F. is induced in secondary coil only when current in primary coil changes. Since current in one coil is constant at 2 amp, e.m.f. induced in secondary coil is zero.
Related Questions: - A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
- An atom bomb weighing 1 kg explodes releasing 9×10¹³ J of energy.
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
- An atom bomb weighing 1 kg explodes releasing 9×10¹³ J of energy.
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply