An SCR is turned off by _________________?

Related Mcqs:

1. 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

2. When an SCR is turned on, the voltage across it is about _____________?

   A. Zero
   B. 10 V
   C. 1 V
   D. 1 V

3. An SCR is made of silicon and not germanium because silicon _________________?

   A. Is inexpensive
   B. Is mechanically strong
   C. Has small leakage current
   D. Is tetravalent

4. An SCR can exercise control over____________of a.c. supply?

   A. Positive half-cycles only
   B. Negative half-cycles only
   C. Both positive and negative half-cycles
   D. Positive or negative half-cycles

5. An SCR is made of_______________?

   A. Germanium
   B. Silicon
   C. Carbon
   D. None of the above

6. An SCR has three terminals viz ________________?

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

7. 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

8. An SCR behaves as a____________switch?

   A. Unidirectional
   B. Bidirectional
   C. Mechanical
   D. None of the above

9. In the normal operation of an SCR, anode is __________ w.r.t. cathode?

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

10. An SCR is a ____________ triggered device?

    A. Voltage
    B. Current
    C. Voltage as well as current
    D. None of the above