Question

How can you strengthen the magnetic field around a current-carrying wire?
A.wad up the wire into a ball
B.wrap the wire into coils

Answers

GPT-4o mini
B. Wrap the wire into coils.

Wrapping the wire into coils, also known as forming a solenoid, concentrates the magnetic field lines and significantly strengthens the magnetic field generated by the current flowing through the wire. The magnetic field inside a solenoid is much stronger and more uniform compared to that of a straight wire. Option A, wad up the wire into a ball, would not effectively strengthen the magnetic field around the wire.

Related Questions