A single-turn circular loop of radius 14 cm is to produce a field at its center that will just cancel the earth's magnetic field at the equator, which is 0.7 g directed north. the permeability of free space is 4 π × 10−7 t · m/a. find the current in the loop. answer in units of a

49 A

Explanation:

We are given that

Number of turns,N=1

Radius,r=14 cm=

1 m=100 cm

Magnetic field,B=0.7 G=

We know that magnetic field

Substitute the values

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.