Question

A current of 1 A flows in a wire of length 0.1 m in a magnetic field of 0.5 T. The force acting on the wire when It makes an angle of ${90}^0$ with the field is

• A. Zero
• B. 0.05N
• C. 1 N
• D. 0.5 N

Answer 1

Answer: (B)

0.05N

We know,.

$F=I(\ell \times B)$

$F=1\times 0.1\times 0.5$ as $\theta ={90}^0$

$F=0.05N$

Option $\text{B}$ is the correct answer.