Voltage across a Capacitor?
The voltage across a 60 microfarad capacitor is described by the equation v_c=(18 V) cos(200t), where t is in seconds.
1) What is the voltage across the capacitor at t =0.010 s?
2) What is the capacitive reactance?
3) What is the peak current?
Comments
a) v_c = (18)cos(200*.01) *IN RADIANS*
b) X_c = 1/wC
where w = 200 and C = 60*10^-6
c) I_p = V_p/X_c = 10/X_c