NEET Physics Biot-Savart Law Assertion Reason Question
Assertion (A): The magnetic field due to a current element is always perpendicular to the plane containing the current element and the position vector. | Reason (R): The direction of the magnetic field is determined using the right-hand screw rule applied to the cross-product of the current element and the position vector.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
The Biot-Savart law states that the magnetic field produced by a current element is perpendicular to the plane containing the current element and the position vector. The right-hand screw rule is used to determine the direction of the cross-product, validating the assertion.
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