Question

When the switch is closed in the circuit shown in the sketch in Figure 22-7


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When the switch is closed in the circuit shown in the sketch in Figure 22-7, the wire between the poles of the horseshoe magnet deflects upward. From this you can conclude that the left end of the magnet is 


A) a south magnetic pole C) not contributing to the wire's deflection. B) a north magnetic pole. D) a magnetic monopole

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Answer #1

according to the concept of the electro magnetic induction

basing on the concept of lenz law

the current entreing in to the side of the magnet pole and the current leaving side of the magnet is north pole

so here we observed the circut the left end of the magnet is current entreing side and the right side is current leaving side

so the left end of the magnet is south pole

the correct option is A

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