How long will it take to completely charge a 0.047 F capacitor ...

[mynx]

How long will it take to completely charge a 0.047 F capacitor through a 1 M resistor?
 
  A) 0.029 s B) 0.47 s C) 0.235 s D) 0.047 s

Question 2

To match a 600  audio load to a 4  speaker system, the primary of the impedance matching transformer must have ________ more turns than the secondary.
 
  A) 150
  B) 12.2
  C) 3.06
  D) The primary should have less turns than the secondary.

[flexer1n1]

Answer to Question 1

C

Answer to Question 2

B