The bar shown in the figure below moves on rails to the right with a velocity v,

Question

The bar shown in the figure below moves on rails to the right with a velocity v, and a uniform, constant magnetic field is directed out of the page. Which of the following statements are correct? (Select all that apply.)

a. The induced current in the loop is zero.
b. The induced current in the loop is clockwise.
c. The induced current in the loop is counterclockwise.
d. An external force is required to keep the bar moving at constant speed.
e. No force is required to keep the bar moving at constant speed

Explanation / Answer

Correct answer:
b. The induced current in the loop is clockwise.
d. An external force is required to keep the bar moving at constant speed.

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