Author Question: The magnetic field and the number of turns in a coil of wire are doubled. Assuming that all the ... (Read 44 times)

maegan_martin · **on:** Jul 29, 2018

The magnetic field and the number of turns in a coil of wire are doubled. Assuming that all the other parameters remain the same, what happens to the induced emf in that coil of wire?

A) It is doubled.
B) It is reduced by a factor of 2.
C) It is quadrupled.
D) It is reduced by a factor of 4.
E) It stays the same.

Question 2

Two ice skaters push off against one another starting from a stationary position.

The 45.0-kg skater acquires a speed of 0.375 m/s. What speed does the 60.0-kg skater acquire? Assume that any other unbalanced forces during the collision are negligible.
A) 0.500 m/s
B) 0.281 m/s
C) 0.375 m/s
D) 0.750 m/s
E) 0.000 m/s