Question

# A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire, the force acting on the wire is:

A
2.4 N
B
1.2 N
C
3.0 N
D
2.0 N

Solution

## The correct option is B 1.2 N$$F=Bilsin\theta$$ ,Here $$\theta=90^0$$$$F=2\times 1\cdot 2\times 0\cdot 5$$$$F= 1\cdot 2 N$$Physics

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