Question

The spacing between magnetic field lines is an indication of ____________.

Select one:

a. closer lines indicate a stronger field

b. the fluctuations in the magnetic field direction

c. farther apart lines indicate a stronger field

d. the direction of the electric field

The flux depends on the area of the loop of wire as given in the equation Φ=ABcosθ How would the equation for flux change if there where N loops of area A?

Select one:

a. Φ=NABcosθ

b. The equation remains the same

c. Φ=NABsinθ

d. Φ=ABsinθ

According to Lenz’s Law, a changing magnetic flux in a coil of wire produces what?

Select one:

a. An induced current in the coil that opposes the change in the magnetic flux

b. A magnetic field in the same direction as the external magnetic flux

c. An induced current in the coil

d. An induced current in the coil that opposes the magnetic flux

Answer 1