A solenoid is near a piece of iron, as shown in the figure. If a current is turn

Question

A solenoid is near a piece of iron, as shown in the figure. If a current is turned on in the solenoid, a magnetic field is created. This magnetic field will magnetize the iron, and there will be a net force between the solenoid and the iron. (Figure 1)

A) Will the force on the iron be attractive or repulsive?

(Choose one)

B) Suppose this force moves the iron. Which way will the iron move?

To the right away from the solenoid

To the left towards the solenoid

(Choose one)

C) As the iron moves, what will happen to the strength of the force?

It will decrease

It will increase

It will not change

(Choose one)

Explanation / Answer

a) attractive. I think because the solenoid acting like a magnet b) to the left--attactive so iron moves closer to the solenoid c) increase--closer to the source               

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