Question

List two sources of magnetic fields.

Answer 1

Sources of magnetic field are :-

1) Permanent Magnet

2) Electromagnet

3) Current carrying solenoid

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Answer 2

Answer:

Two sources of magnetic field are

1. Current carrying wire

2. Earth

Explanation:

• Every current carrying wire is a source of magnetic field. According to the thumb rule, if we wind the right hand such that the thumb points to the ‘direction of the current flow’, then the magnetic field shows the direction of the field.

• The earth is the biggest source of magnetic field by which any bar magnet when suspended freely lies in ‘North south direction’.