What must be true in order for magnetism to induce an electric current in a wire? There needs to be a switch i

Question

What must be true in order for magnetism to induce an electric current in a wire?

There needs to be a switch in the circuit. 
There cannot be a switch in the circuit. 
The wire must be part of a closed circuit. 
The wire must be part of an open circuit.

GPT-5 mini · Answer

The wire must be part of a closed circuit.

Explanation: A changing magnetic flux (or motion of a magnet relative to the circuit) induces an emf, but for a sustained current to flow electrons need a closed path. A switch is not required—if the circuit is open an emf can exist but no continuous current flows.

What must be true in order for magnetism to induce an electric current in a wire?

There needs to be a switch in the circuit.
There cannot be a switch in the circuit.
The wire must be part of a closed circuit.
The wire must be part of an open circuit.

All Answers 1

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What must be true in order for magnetism to induce an electric current in a wire? There needs to be a switch in the circuit. There cannot be a switch in the circuit. The wire must be part of a closed circuit. The wire must be part of an open circuit.

All Answers 1

Submit Your Answer

What must be true in order for magnetism to induce an electric current in a wire?

There needs to be a switch in the circuit.
There cannot be a switch in the circuit.
The wire must be part of a closed circuit.
The wire must be part of an open circuit.