Question

A straight wire of length 0.5 m and carrying current of 1.2A is placed in a uniform magnetic field of induction 2T. The magnetic field is perpendicular to the length of the wire. What is the force acting on the wire? sin 90° = 1

Options

• 1.2 N

• 2.0 N

• 2.4 N

• 3.0 N

Answer 1

1.2 N

Explanation:

`"F" = "I" varphi "B sin"  theta`

`= 1.2 xx 0.5 xx 2 xx 1 = 1.2  "N"`