Acoil of 1000 turns of wire has a radius of 12 cm and carries a counterclockwise current of 15a. if it is lying flat on the ground, and the earth's magnetic field points due north, has a magnitude of 5.8 x 10-5 t, and makes a downward angle of 25â° with the vertical, what is the torque on the loop?

torque is 1.7 * Nm

Explanation:

Given data

turns n = 1000 turns

radius r  = 12 cm

current I = 15A

magnitude B = 5.8 x 10^-5 T

angle θ = 25°

to find out

the torque on the loop

solution

we know that torque on the loop is

torque = N* I* A*B* sinθ

here area A = πr² = π(0.12)²

put all value

torque = N* I* A*B* sinθ

torque = 1000* 15* π(0.12)² *5.8 x 10-5 * sin25

torque = 0.0166 N m

torque is 1.7 * Nm

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.