A bar magnet is moving through the closed metallic loop (figure 1.4).Use Lenzs l

Question

A bar magnet is moving through the closed metallic loop (figure 1.4).Use Lenzs law to determine the the direction of induced electric field and induced electric current when anorth pole of a magnet approaches the loop and a south pole of a magnet goes away from a magnet. Give your reasoning Ussing Lenz's law, determine the direction of the current in resistor ab of figure 21.52 when switch Sis opened after having been closed for several minutes; coil B is brought closer to coil A with the switch closed;(c) the resistance of R is decreased while the switch remains closed. Present your reasoning.

Explanation / Answer

36. according to lenz law , induced emf or current appears in opposite to the direction what caused it

so

here

When north pole is approaching the loop, current flows in Clockwise direction

and

b. when South pole goes away fromn the loop, again Clockwise direction

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part B : figure not loaded

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