Question

A capacitor is connected across an ac source that has voltage amplitude 59.0 V and frequency 750 Hz Part A What is the phase angle o for the source voltage relative to the current? Express your answer in degrees. 190 AED ? - Submit Request Answer Part B Does the source voltage lag or lead the current? O lag O lead Submit Request Answer Part What is the capacitance of the capacitor if the current amplitude is 5.50 A ? Express your answer with the appropriate units. HA ? Value Units Submit Request Answer Provide Feedback

Answer 1

For a purely capacitive circuit current leads the voltage by 90°. We use this to find the solution as shown below

A for a purely purely capacitive circuit, current leads the voltage by 90° o So, angle 0 relative to current is, s if only 90 magnitude is needed, remove the minus sign 0 B) Voltage Voltage lags the current. I mars - Vimas 2 -> Imax = Vmase WC sw=27f manc ) {w 1 WC ماما 5.5A - (591) (21)7542) C = 4 1.98 X 10 F