Q33 / 236 · NTA Abhyas (NEET) 2020 · Physics · Magnetic Effects of Current

A straight wire of length $0.5 m$ and carrying a current of $1.2 A$ is placed in a uniform magnetic field of induction $2 T$ . The magnetic field is perpendicular to the length of the wire. The force on the wire is

A
$2.4 N$
Correct answer
B
$1.2 N$
C
$3.0 N$
D
$2.0 N$

Solution

F = Bil = 2 \times 1 .2 \times 0 .5 = 1 .2 N

Hence, the correct answer is option: 'B'.

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