Question

What is the magnitude of magnetic force per unit length of wire carrying a current of 2 ampere making an angle of 45 degree with the direction of uniform magnetic field of 0.25 t?

Answer 1

Answer:

Explanation: this example has same answer as according to your question:

Current in the wire, I = 8 A

Magnitude of the uniform magnetic field, B = 0.15 T

Angle between the wire and magnetic field, image019 NCERT Solutions class-12 physics Moving Charges and Magnetism = 30°.

Magnetic force per unit length on the wire is given as:

f= BI sinimage019 NCERT Solutions class-12 physics Moving Charges and Magnetism

= image020 NCERT Solutions class-12 physics Moving Charges and Magnetism

= 0.6 N m-1

Hence, the magnetic force per unit length on the wire is 0.6 N m-1.