A coil of insulated wire is connected to a galvanometer. What would be seen if a bar magnet with its south pole towards one face of the coil is moved quickly toward and away from it.

the galvanometer is deflected towards the left.

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the deflection of galvanometer is random

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the galvanometer is deflected towards the right.

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the deflection of the galvanometer is zero

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Solution

The correct options are
A the galvanometer is deflected towards the left.
C the galvanometer is deflected towards the right.
When a coil of insulated wire is connected to a galvanometer and if a bar magnet with its south pole, towards one face of the coil, is moved quickly towards it, the galvanometer is deflected towards the left. When magnet is moved quickly away from the coil, the galvanometer is deflected towards the right.
The phenomenon involved in this activity is 'Electromagnetic Induction'. The production of electric current by moving a magnet near a fixed coil of wire is called electromagnetic induction.

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