Author Question: Two parallel conductors are carrying currents in the opposite direction. The currents are non-zero ... (Read 40 times)

nenivikky · **on:** Jul 28, 2018

Two parallel conductors are carrying currents in the opposite direction. The currents are non-zero and not necessarily equal. The magnitude of the magnetic field midway between them is 40 mT. If one of the currents then has its direction reversed, what is the resulting magnitude of the magnetic field midway between them?
a. a value greater than 40 mT
c. 40 mT
b. a value less than 40 mT
d. It could be any value.

Question 2

Doubling the displacement from equilibrium of an object in simple harmonic motion will bring about a change in the magnitude of the object's acceleration by what factor?
a. 4.0
c. 1.0
b. 2.0
d. 0.5