3 A square loop of wire lies in the plane of the page. A decreasing magnetic fie

Question

3 A square loop of wire lies in the plane of the page. A decreasing magnetic field is is directed into the page. The induced current in the loop is: A) counterclockwise B) clockwise C) zero D) up the left edge and from right to left along the top edge E) through the middle of the page 4) The figure shows a bar moving to the right on two conducting rails. To make an induced current i in the direction indicated, a constant magnetic field between the rails should be in what direction? A) Right B) C) Into the page D) Out of the page E) Impossible, cannot be done with a constant maona

Explanation / Answer

3 clock wise

Induced current always flows in that direction that opposes the change that caused

4 in to the page

Using right hand rule, the magnetifield is directed out of the page so it must be opposing the gain of field that is already going into the page

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