A current of 1 A is flowing along positive x -axis through a straight wire of length 0.5 m placed in a region of a magnetic field given by B = ( 2 i + 4 j ) T . The magnitude and the direction of the

Question

A current of 1 A is flowing along positive x -axis through a straight wire of length 0.5 m placed in a region of a magnetic field given by B = ( 2 i + 4 j ) T . The magnitude and the direction of the force experienced by the wire respectively are

TestHub · Accepted Answer

The force experienced by the wire placed in magnetic field, F = B i l = ( 2 i ^ + 4 j ^ ​ ) ( 1 i ^ × 2 1 ​ ) = i ^ × i ^ + 4 × 2 1 ​ ( i ^ × j ^ ​ ) = 2 k ^ N ​ Direction of this force can be find out by Fleming's left hand rule which is along pasitive z-axis

Physics - Magnetism Question with Solution | TestHub

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