Question

A current through a horizontal power line flows from south to north direction. The direction of magnetic field line 0.5m above it is ____________.

Options

• North

• South

• West

• East

Answer 1

A current through a horizontal power line flows from south to north direction. The direction of the magnetic field line 0.5m above it is East.

Explanation:

Distance = 0.5 m

We need to calculate the direction of the magnetic field

Using the right-hand rule,

In the right-hand rule, the thumb shows the direction of current and the folded Fingers show the direction of a magnetic field.

Here, The direction of the current is south to north so the direction of the magnetic field is east.