Question

which actions are ways to manipulate the magnet and wire loop in order to induce a current? check all that apply
move the magnet forward.
move the loop away from the magnet.
place the loop right next to the magnet, both stationary.
move the loop sideways.
move the magnet and loop in the same direction, at the same speed, at the same time.
rotate the loop in place.

Explanation:

To induce a current in a wire loop, there must be a change in magnetic flux through the loop. Magnetic flux change occurs when the magnet and loop move relative to each other (changing the magnetic field through the loop) or the loop rotates (changing the angle between the loop and the magnetic field lines).

• Moving the magnet forward: Changes the magnetic field through the loop, so flux changes.
• Moving the loop away from the magnet: Relative motion, flux changes.
• Placing both stationary: No flux change, so no current.
• Moving the loop sideways: If the magnetic field is non - uniform (like from a bar magnet), sideways motion can change flux.
• Moving magnet and loop same speed/direction: No relative motion, flux doesn't change.
• Rotating the loop in place: Changes the angle between the loop and magnetic field lines, so flux changes.

Answer:

• Move the magnet forward.
• Move the loop away from the magnet.
• Move the loop sideways.
• Rotate the loop in place.