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LoginA coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is (i) pushed into the coil (ii) withdrawn from inside the coil (iii) held stationary inside of coil?
General Awareness General QA . 2 years ago
+10 pts
(i) When a bar magnet is pushed into the coil, a momentary deflection is observed in the galvanometer. This deflection indicates that a momentary current is produced in the coil.
(ii) When a bar magnet is held stationary inside the coil, there is no deflection in the galvanometer. It indicates that no current is produced in the coil.
(iii) When a bar magnet is withdrawn from the coil, the deflection of the galvanometer is in opposite direction. It indicates that a current an opposite direction is produced.
Posted on 06 Oct 2022, this text provides information on General Awareness related to General QA. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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