Name and state the rule which determine the direction of magnetic field around a straight curent - carrrying conductor . Also draw diagram .

Explanation

Name of the rule : Right - hand thumb rule .
This rule is also called Maxwell .s corkscrew rule .
Rule : Imagine that you are holding a current - carrying straight conductor in your right hand such that the thumb point twoards the direction of current . Then your finger of right hand wrap around the conductor in the direction hand wrap around the conductor in the direction of the field lines of the magnetic field.
This is known as the Right - hand thumb rule .
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