An ac circuit has a 100- resistor in series with a 4.9-F ...

[TFauchery]

An ac circuit has a 100- resistor in series with a 4.9-F capacitor and a 700-mH inductor. At what frequency does the circuit act like a pure resistance?
 
  A) 0.29 MHz
  B) 1.9 MHz
  C) 12 MHz
  D) 0.54 kHz
  E) 86 Hz

Question 2

A series ac circuit has a resonance frequency of 9.0 kHz. If the inductor in the circuit has a value of 2.0 H, and the resistance is 75 , what is the capacitance of the circuit?
 
  A) 0.16 pF
  B) 156 pF
  C) 6.2 pF
  D) 17.7 pF

[sarah_brady415]

Answer to Question 1

E

Answer to Question 2

A