A magnetic field B that is decreasing with time a directed out of the page and p

Question

A magnetic field B that is decreasing with time a directed out of the page and passes through a loop of wire in the plane of the page, as shown above. Which of the following is true about the induced current in the wire loop? a) It is counterclockwise in direction b) It is clockwise in direction. c) It is directed into the page d) It is directed out of the page. A wire in the plane of the page carries a current I directed toward the top of the page, as shown above. If the wire is located in a uniform magnetic field B directed out of the page, the force on the wire resulting from the magnetic field is a) Directed into the page. b) Directed out of the page c) Directed to the right. d) Directed to the right. e) Zero. A circular metal ring is suspended above a solenoid. The magnetic field due to the solenoid is shown in the figure below. The current in the solenoid is increasing. What is the direction of the current in the ring? In what direction in the net magnetic force on the ring? a) clockwise, upward b) clockwise, downward c) counterclockwise, upward d) counterclockwise, downward

Explanation / Answer

18. B - it is in clock wise direction

19. C - directed to the right

20. D - counter clock wise downward

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