Question

State if the following statements are true or false:
a. A magnetic compass is a type of temporary magnet.
b. Electromagnets are permanent magnets.​

Answer 1

Answer: a) False

Magnetic compass is used for navigation and its magnetic needle is made of permanent magnet which is always aligned according to the earth's magnetic field.

b) True

Electromagnets are made out of a coil of wire (wire curled in series). This is more effective in producing a magnetic field than just a wire running straight. This effect can be strengthened by winding a wire tightly around a powerful core, made of magnetic material, such as iron.

Answer 2

Answer:

1. false
2. true

Explanation:

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