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

(a) North ( b) South (c) East (d) West​

Answer 1

The direction of magnetic  field line is east.

(c) is correct option.

Explanation:

Given that,

Distance = 0.5 m

We need to calculate the direction of magnetic field

Using right hand rule,

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

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

Hence, The direction of magnetic  field line is east.

Learn more :

Topic : right hand rule

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Answer 2

The direction of magnetic field is east