How can you determine direction of magnetic field lines around a current carrying conductor

Left hand Thumb Rule

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Right Hand Thumb Rule

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By rotating the conductor

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Using sonometer

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Solution

The correct option is B Right Hand Thumb Rule
Direction of magnetic field lines around a current carrying conductor can be found by Right Hand Thumb Rule.
Imagine that you are holding a current-carrying straight conductor in your right hand such that the thumb points towards the direction of current. Then your fingers will wrap around the conductor in the direction of the field lines of the magnetic field.

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Similar questions

State right hand thumb rule which describes the direction of magnetic field around a current carrying wire.

When a wire is carrying current, the magnetic field around the conductor can be found by ___ hand thumb rule.

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