A plotting compass is placed close to a current carrying wire as shown in the figure. Which of the following compasses rightly depicts the direction of needle inside the compass?

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Solution

The correct option is C
Using right thumb rule:
When the thumb is aligned in the direction of current, the direction of other fingers surrounding the wire curl to show the magnetic field direction around the wire.
In this scenario, the direction can be found as shown in this figure

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A plotting compass is placed close to a current carrying wire as shown in the figure. Which of the following compasses rightly depicts the direction of needle inside the compass?

The correct option is C Using right thumb rule: When the thumb is aligned in the direction of current, the direction of other fingers surrounding the wire curl to show the magnetic field direction around the wire. In this scenario, the direction can be found as shown in this figure

The correct option is C
Using right thumb rule:
When the thumb is aligned in the direction of current, the direction of other fingers surrounding the wire curl to show the magnetic field direction around the wire.
In this scenario, the direction can be found as shown in this figure