25 V rated n SCRs are connected in series. The operation voltage of the string is 300 V and the string efficiency is 40 %. Calculate the value of n.

25 V rated n SCRs are connected in series. The operation voltage of th

1.	25 V rated n SCRs are connected in series. The operation voltage of the string is 300 V and the string efficiency is 40 %. Calculate the value of n.
A.	27
B.	30
C.	34
D.	36
Answer» C. 34