Directions : (21-25) |
The Experiments of Faraday and Henry |
In year 1820 Oersted discovered the magnetic effect of current. Faraday gave the through that reverse of this phenomenon is also possible i.e., current can also be produced by magnetic field. Faraday showed that when we move a magnet towards the coil which is connected by a sensitive galvanometer. The galvanometer gives instantaneous deflection showing that there is an electric current in the loop. |
Whenever relative motion between coil and magnet takes place an e.m.f. induced in coil. If coil is in closed circuit then current is also induced in the circuit. This phenomenon is called electromagnetic induction. |
A) moving towards the solenoid
B) moving into the solenoid
C) at rest inside the solenoid
D) moving out of the solenoid
Correct Answer: D
Solution :
More rapid is the movement of bar magnet, more is the deflection observed in the galvanometer.You need to login to perform this action.
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