engineering recuitment MAHATRANSCO AE Electrical Mock Test Power Electronics and Drives Power Semiconductor Diodes and Transistors
Consider the following statements
1. DIAC is a bidirectional device that can conduct the electric current in both directions.
2. SCR is a unidirectional device. It blocks the current flow from the cathode to the anode.
3. TRIAC is a bidirectional thyristor with three terminals.
4. DIAC break-over voltage can be controlled.
Which of the above statements are correct?
1
1, 3 and 4 only
2
3 and 4 only
3
2, 3 and 4 only
4
1, 2 and 3 only
5
2 and 4 only