A straight wire of length $0.5\, metre$ and carrying a current of $1.2\, ampere$ placed in a uniform magnetic field of induction $2\, Tesla$. The magnetic field is perpendicular to the length of the wire. The force on the wire is.......$N$
AIPMT 1992, Easy
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(b) $F = Bil = 2 \times 1.2 \times 0.5 = 1.2\,N$
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