The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply of frequency of

The SCR would be turned OFF by voltage reversal of applied anode-catho

1.	The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply of frequency of
A.	30 kHz
B.	15 kHz
C.	5 kHz
D.	20 kHz
Answer» D. 20 kHz