Question

The given rods will attract each other when:

Options

• A and C are connected to positive terminal of the battery.

• B and C are connected to the positive terminal of the battery.

• A and D are connected to the positive terminal of the battery.

• A and D are connected to the negative terminal of the battery.

Answer 1

A and C are connected to positive terminal of the battery.

Explanation:

Using the right-hand thumb rule for the windings shown, connecting A and C to the positive terminal makes the two rods behave as electromagnets with opposite polarities at the adjacent ends. So they attract each other. In the other options, the adjacent ends get the same polarity, so the rods repel.