A square wire wrapped 10 times lies in the x-y plane with current of 4 amps runn

Question

A square wire wrapped 10 times lies in the x-y plane with current of 4 amps running counter-clockwise. If the lengths of the sides of the square is 0.75 meters, what is the magnitude and direction of the magnetic moment of the square in A m^2? Indicate the negative z direction, but including a negative sign, but do not include one for the positive z direction. A long straight wire, wire 1, has a current of 5 Amps running in the -x direction on the x axis. 2 meters "above" the x axis, in the x-y plane, a long wire, wire 2. with a current of 10 Amps runs in the +x direction. What is the force per unit length on wire 1? 5 times 10^-6 N/m in the +y direction 5 times 10^-6 N/m in the -y direction 10 times 10^-6 N/m in the +y direction 10 times 10^-6 N/m in the -z direction A solenoid runs through the x-y plane. The amount of the magnetic field in the 1.09 Tesla. If the radius of the solenoid (the radius of the circle as it crosses the x-y plane) is doubled, what is the amount of the magnetic field inside the solenoid?

Explanation / Answer

4 )

F/l = uo*i1*i2/2pi*r

r = 2m

uo = 4pi x 10^-7

i1 = 5 A

i2 = 10 m

F/l = 5 x 10^-6 N/m

usin right hand rule = +y direction

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