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A solenoid is hooked up to a battery and a switch as shown in the figure below.

Created for Albert.io. Copyright 2016. All rights reserved.

In the moments just after the switch is opened, what direction is the emf of the solenoid coil?

A

Location $A$ positive and Location $B$ negative.

B

Location $A$ is positive and Location $B$ positive.

C

Location $A$ is negative Location $B$ is negative.

D

Location $A$ is negative Location $B$ is positive.

E

No emf voltage is produced in the solenoid coil.

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