An ideal thyristor is driving an R-L load of impedance Z. Input AC voltage Vs = Vmsinωmt. If thyristor if fired at an input phase angle of 90°. What will be the output voltage and output current across R-L load as the instant of firing?
A. Output voltage is Vm and output current is Vm/Z
B. Output voltage and output current are both zero
C. Output voltage is zero and output current is delayed by an angle 90°
D. Output voltage is Vm and output current is zero
Answer: Option D
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