One time constant after an RL circuit has its switch closed, how ...

[LaDunn]

One time constant after an RL circuit has its switch closed, how does the current I in it compare to the maximum current Imax that occurs for this circuit?
 a. I > Imax/2
  b. I = Imax/2
  c. I < Imax/2
  d. Without knowing R and L, this cannot be determined.

Question 2

Bats can detect small objects such as insects that are of a size approximately that of one wavelength. If bats emit a chirp at a frequency of 50 kHz, and the speed of sound waves in air is 330 m/s, what is the smallest size insect they can detect?
 a. 1.5 mm
  c. 5.5 mm
  b. 3.7 mm
  d. 6.6 mm

[cat123]

Answer to Question 1

A

Answer to Question 2

D

[LaDunn]

Thanks

[cat123]

Welcome