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Multiple Choice
An AC source operates at a maximum voltage of 60 V and is connected to a 0.7 mF capacitor. If the current across the capacitor is i(t) = iMAX cos[(100 s−1 )t],
a) What is iMAX?
b) Draw the phasors for voltage across the capacitor and current in the circuit at t = 0.02 s. Assume that the current phasor begins at 0°.
A
a) imax = 4.2A b) θiC = 115o θVC = 185o
B
a) imax = 4.2A b) θiC = 185o θVC = 115o
C
a) imax = 4.2A b) θiC = 115o θVC = 25o
D
a) imax = 4.2A b) θiC = 25o θVC = 115o
4:32m
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