Question

in a straight carrying conductor and magnetic compass needle 1.what happens to deflection of compass if current increased
2.i f direction of current reversed
3.if compass is moved away from conductor
4.is there any similar magnetic field produced through electrons or neutrons
5.give two use of magnetic compass.

Answer 1

1. If the compass needle is wobbling, than it stops.
2. The direction of compass also reverses.
3. It starts to wobble again but doesn't change direction.
4. Yes.
5. Uses of Magnetic Compass -

        i. Used by sailors to know direction.

        ii. Used by technicians to know direction of current.