A straight wire segment 2 m long makes an angle of 30degrees with a uniform magnetic field of 0.37 T. Find the magnitude of the force on the wire if it carries a current of 2.3 A.

0.999 N.

Explanation:

From the question,

The formula for the force on a conductor carrying current in a magnetic field is given as,

F = BILsinФ Equation 1

Where F = force on the wire, B = magnetic field, I = current carried by the wire,   L = length of the wire, Ф = angle between the wire and the magnetic field.

Given: B = 0.37 T, I = 2.3 A, L = 2 m, Ф = 30°

Substitute into equation 1

F = 0.37(2.3)(2)(sin30)

F = 0.37(2.7)(2)(0.5)

F = 0.999 N.

Hence the force on the wire = 0.999 N.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia