(Use FIG 1) http://session.masteringphysics.com/problemAsset/1264158/2/yg.21.52.

Question

(Use FIG 1) http://session.masteringphysics.com/problemAsset/1264158/2/yg.21.52.jpg

A)Using Lenz's law, determine the direction of the current in resistor ab in the figure when switch S is opened after having been closed for several minutes. (pick one)


1.The induced current passes through the resistor from a to b .

2.The induced current passes through the resistor from b to a .

3.The induced current is zero.

B) Using Lenz's law, determine the direction of the current in resistor ab in the figure when coil B is brought closer to coil A with the switch closed.(pick one)

1.The induced current passes through the resistor from a to b .

2.The induced current passes through the resistor fromb to a.

3.The induced current is zero.

C) Using Lenz's law, determine the direction of the current in resistor ab in the figure when the resistance of R is decreased while the switch remains closed.(pick one)

1.The induced current passes through the resistor from a to b .

2.The induced current passes through the resistor from b to a .

3.The induced current is zero.

Explanation / Answer

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