(A) : When the observation point lies along the length of the current element, magnetic field is zero. (R) : According to Biot-Savart's law field is defined only when position vector of a point relative to current element is non zero.

(A) : When the observation point lies along the length of the current

1.	(A) : When the observation point lies along the length of the current element, magnetic field is zero. (R) : According to Biot-Savart's law field is defined only when position vector of a point relative to current element is non zero.
Answer» Both 'A' and 'R' are TRUE and 'R' is the correct EXPLANATION of 'A'. Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A' 'A' is true and 'R' is FALSE 'A' is false and 'R' is false Answer :A

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(A) : When the observation point lies along the length of the current element, magnetic field is zero. (R) : According to Biot-Savart's law field is defined only when position vector of a point relative to current element is non zero.

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