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 magneticfield given by B^{\to} = (2i^{\^} + 4j^{\^}) T. The magnitude and the direction of the force experienced by the wire respectively are

Correct Answer is : 2 N , along positive z - axis

\sqrt{18} N , along positive z - axis

\sqrt{20} N , along positive x - axis

WBJEE 2013 Physics Solved Paper

Question : 17 of 60

Marks: +1, -0

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 magneticfield given by

→

= (2

+ 4

) T. The magnitude and the direction of the force experienced by the wire respectively are

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