railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrician and Wireman Electronic Devices and Circuits Converters and Rectifiers
Which of the following method is used to convert AC to DC?
(1) Motor-generator set
(2) Rotary converter
(3) Mercury arc rectifier
1
(1), (2), and(3)
2
Only (b)
3
(1) and (3)
4
(1) and (2)