joan makes the device shown in her science class. what would happen to the magnetic field if she connects…

joan makes the device shown in her science class. what would happen to the magnetic field if she connects the battery in the opposite direction? the field would stop. the field would get stronger. the field would reverse its poles. the field would get weaker.

joan makes the device shown in her science class. what would happen to the magnetic field if she connects the battery in the opposite direction? the field would stop. the field would get stronger. the field would reverse its poles. the field would get weaker.

Answer

Brief Explanations:

The direction of the magnetic field of an electromagnet (like the one made with a coiled - wire - wrapped iron nail and a battery) depends on the direction of the electric current. When the battery is connected in the opposite direction, the direction of the current changes. According to the right - hand rule for electromagnets, this change in current direction results in the reversal of the magnetic poles.

Answer:

The field would reverse its poles.