Question

For the arrangement shown below, if we want to change the direction in which the magnetic needle gets deflected, then which of the following can be done?

• A. Changing the material of the wire.
• B. Changing the polarity of the cell.
• C. Decreasing the voltage.
• D. Increasing the voltage.

Answer 1

The correct option is B

Changing the polarity of the cell.

For changing the direction in which magnetic needle gets deflected, we have to reverse the direction of current flowing in the wire. This can be achieved by changing the polarity of the battery.