If the rotating coil used in a generator has its radius doubled, ...

[Ebrown]

If the rotating coil used in a generator has its radius doubled, what change results in the amplitude of the voltage produced?
 a. It doubles.
  c. It is increased by a factor 23/2.
  b. It quadruples.
  d. It stays the same.

Question 2

A radar pulse is bounced off the Moon at a distance of 400,000 km. What is the time from the transmitting of the pulse until its return?
 a. 1.28 s
  c. 2.67 s
  b. 2.56 s
  d. 3.84 s

[debra928]

Answer to Question 1

B

Answer to Question 2

C