Multiple Choice
When a bar magnet is thrust into a coil of copper wire, the coil tends to
A) attract the magnet as it enters.
B) repel the magnet as it enters.
C) both of these
D) neither of these
Correct Answer:

Verified
Correct Answer:
Verified
Q15: Electromagnetism unites<br>A)electricity and magnetism.<br>B)electric and gravitational fields.<br>C)physics
Q16: The principle difference between a step-up and
Q17: Power is transmitted at high voltages because
Q18: The secondary of a transformer is the
Q19: The spacing between the parallel power lines
Q21: A turbogenerator produces<br>A)energy.<br>B)power.<br>C)neither, but transforms energy from
Q22: Induced electric and magnetic fields result in<br>A)electromagnetic
Q23: Magnetic field strength inside a current-carrying coil
Q24: The primary of a transformer is the
Q25: The voltage across the input terminals of