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

Related Mcqs:

1. 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

2. 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

3. An SCR is turned off by _________________?

   A. Reducing anode voltage to zero
   B. Reducing gate voltage to zero
   C. Reverse biasing the gate
   D. None of the above

4. 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

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

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

6. 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

7. An SCR is made of_______________?

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

8. 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

9. 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

10. An SCR is a ____________ triggered device?

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