Activity B:

Question

Induced currents
Get the Gizmo ready:
Check that Show electric field at sensor is on.
Click Reverse to move the magnet down and set the Speed to 10 cm/s.

Question: How do magnets induce electric currents?

📷 Observe: Drag the wire loop directly above the magnet. Click Forward and observe the wire loop and light bulb. As the magnet is moving, click the camera () icon to take a snapshot. Right-click the image, and click Copy Image. Paste this image into the document below.

Answer 1

As the magnet moves down, the changing magnetic field around the magnet induces an electric current in the wire loop. This induced current flows through the light bulb, causing it to light up. This phenomenon is known as electromagnetic induction, where a changing magnetic field produces an electric current in a conductor.