Question

A $0.5m$ long straight wire in which a current of $3.2A$ is flowing is kept at right angle to a uniform magnetic field of $2.0T$. The force acting on the wire will be :

• A. $2N$
• B. $2.4N$
• C. $3.2N$
• D. $3N$

Answer 1

Answer: (C)

$3.2N$

Force on the current carrying wire is given by,
$F=ilB=3.2\times 0.5\times 2=3.2N$