Question

Which of the following do not have a permanent magnet?

• A. Magnetic door catcher
• B. Electric bells
• C. Compass
• D. Mixer

Answer 1

Answer: (A), (B), (D)

Mixer

1. The permanent magnets are always magnetized.
2. Temporary magnets only work whenever the current is supplied through the coil.

The explanation for incorrect option(s):

1. Temporary magnets are used in a Magnetic door, Mixer, and electric bells.

The explanation for correct option(s):

1. A magnetic compass is a permanent magnet.
2. So it is not a correct option.

Hence the correct options are option (A), option (B), and option (D).