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? iron nail coiled wire wire battery battery 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? iron nail coiled wire wire battery battery the field would stop. the field would get stronger. the field would reverse its poles. the field would get weaker.

Answer

Brief Explanations:

The magnetic field of an electromagnet (like the one with the coiled - wire around the iron nail) depends on the direction of the electric current. When the battery is connected in the opposite direction, the direction of the current in the wire changes. According to the right - hand rule for electromagnetism, this change in current direction causes the magnetic poles of the electromagnet to reverse.

Answer:

The field would reverse its poles.