Question

Which statement is an example of a magnetic field.

a) Stationary protons and moving electrons in a wire in an electric circuit
b) Spinning protons and moving electrons in an induction coil
c) Spinning protons and moving electrons in a wire in an electric circuit
d) Spinning electrons in an electric circuit

Answer 1

The correct answer is option c) Spinning protons and moving electrons in a wire in an electric circuit. The spinning protons and moving electrons in the wire create a magnetic field due to their motion, which can induce magnetic effects and interact with other magnetic fields.

Step-by-step explanation:

The correct answer is option c) Spinning protons and moving electrons in a wire in an electric circuit.

In this option, the spinning protons and moving electrons in the wire create a magnetic field due to their motion. This is known as magnetomotive force (mmf).

The magnetic field produced by the spinning protons and moving electrons in the wire can induce magnetic effects and interact with other magnetic fields.