A copper coil is connected to a galvanometer. what would happen,if a bar magnet is
i) pushing into the coil with its North pole entering first
ii)held at rest inside the coil
iii) pulled out again
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Answers
Explanation:
i) pushing into the coil with its North pole entering first
A copper wire (conductor) is connected with a Galvanometer. When a bar magnet is pushed into the coil with the North Pole entering first, the side of the coil near the north pole will develop North polarity.
ii)held at rest inside the coil
(ii) When the magnet is held at rest, there is no deflection in the galvanometer.
iii) pulled out again
When the magnet is held at rest, there is no deflection in the galvanometer, indicating that no current is produced in the coil. When the north-pole is pulled out from the coil, the deflection of the galvanometer is along the opposite direction, indicating the production of an opposite current.
When the north-pole is pushed into the coil, a momentary deflection is observed in the galvanometer that indicates the production of a momentary current in the coil. When the magnet is held at rest, there is no deflection in the galvanometer, indicating that no current is produced in the coil.
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