Question

Describe an activity to show that deflection of the magnetic needle depends on the direction of current flowing through the wire.​

Answer 1

Answer:

Explanation:

If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected.

Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing.

The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow. Below is a sketch of what the magnetic field around a wire looks like when the wire has a current flowing in it. We use B to denote a magnetic field and arrows on field lines to show the direction of the magnetic field. Note that if there is no current there will be no magnetic field.

In a current carrying conductor direction of current determines the direction of magnetic field . ... Hence we concluded that current flowing in a conductor produces magnetic field around it and its direction depends on direction of current in conductor.

Hope it helps.