The magnetic field at the centre of a toroid is 2.2-mt. if the toroid carries a current of 9.6 a and has 6.000 turns, what is the radius of the toroid?

Radius, r = 0.00523 meters

Explanation:

It is given that,

Magnetic field,

Current in the toroid, I = 9.6 A

Number of turns, N = 6

We need to find the radius of the toroid. The magnetic field at the center of the toroid is given by :                  

r = 0.00523 m

or

So, the radius of the toroid is 0.00523 meters. Hence, this is the required solution.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards