Ageing of a selenium rectifier may change the output voltage by
A. 5 to 10 per cent
B. 15 to 20 per cent
C. 25 to 30 per cent
D. none of the above
Answer:A
Ageing of a selenium rectifier may change the output voltage by
A. 5 to 10 per cent B. 15 to 20 per cent C. 25 to 30 per cent D. none of the above