Author Question: A straight wire of length 70 cm carries a current of 50 A and makes an angle of 60 with a uniform ... (Read 237 times)

burton19126 · **on:** Jul 28, 2018

A straight wire of length 70 cm carries a current of 50 A and makes an angle of 60 with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of B?
a. 41 mT
b. 33 mT
c. 55 mT
d. 87 mT
e. 57 mT

Question 2

A segment of wire carries a current of 25 A along the x axis from x = -2.0 m to x = 0 and then along the z axis from z = 0 to z = 3.0m. In this region of space, the magnetic field is equal to 40 mT in the positive z direction. What is the magnitude of the force on this segment of wire?
a. 1.0 N
b. 5.0 N
c. 2.0 N
d. 3.6 N
e. 3.0 N