Multiple choice

What is the circuit current, if a 5 V, 60 Hz voltage is applied to 4.7 microF capacitor?

  1. 112.93 A

  2. 8.85 mA

  3. 0.94 mA

  4. 2823.3 A

  5. 23.5 mA

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Xc = 1/2*pi*f*c = 1/2*3.14*60*4.7*10^-6 Xc = 1/1770.96*10^-6  = 564.665 I = V / Xc = 5/564.665  = 0.008854 = 8.85*10^-3 = 8.85mA