Astraight wire 20 cm long, carrying a current of 4 a, is in a uniform magnetic field of 0.6 t. what is the force on the wire when it is at an angle of 30° with respect to the field?

Magnetic force, F = 0.24 N

Explanation:

It is given that,

Current flowing in the wire, I = 4 A

Length of the wire, L = 20 cm = 0.2 m

Magnetic field, B = 0.6 T

Angle between force and the magnetic field, θ = 30°. The magnetic force is given by :

F = 0.24 N

So, the force on the wire at an angle of 30° with respect to the field is 0.24 N. Hence, this is the required solution.

the answer is a. at the equator

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