When SCR is OFF, the current in the circuit is ________________?

Related Mcqs:

1. If firing angle in an SCR circuit is increased, the output _____________?

   A. Remains the same B. Is increased C. Is decreased D. None of the above...

2. In an SCR circuit, the angle of conduction can be changed by__________________?

   A. Changing anode voltage B. Changing gate voltage C. Reverse biasing the gate D. None of the above...

3. In an SCR circuit the supply voltage is generally ___________ that of breakover voltage?

   A. Equal to B. Less than C. Greater than D. None of the above...

4. An SCR is turned off when ________________?

   A. Anode current is reduced to zero B. Gate voltage is reduced to zero C. Gate is reverse biased D. None of the above...

5. An SCR has three terminals viz ________________?

   A. Cathode, anode, gate B. Anode, cathode, grid C. Anode, cathode, drain D. None of the above...

6. If gate current is increased, then anode-cathode voltage at which SCR closes_________________?

   A. Is decreased B. Is increased C. Remains the same D. None of the above...

7. When SCR starts conducting, then _____________ loses all control?

   A. Gate B. Cathode C. Anode D. None of the above...

8. An SCR is sometimes called ____________?

   A. Triac B. Diac C. Unijunction transistor D. Thyristor...

9. In normal operation of an SCR, gate is _____________w.r.t. cathode?

   A. Positive B. Negative C. At zero potential D. None of the above...

10. The normal way to turn on a SCR is by______________?

    A. Breakover voltage B. Appropriate anode current C. Appropriate gate current D. None of the above...