Virtual Labs

Tools

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Plot V-I characteristics of SCR.

Choose difficulty:

Beginner

Intermediate

Advanced

1. A thyristor (SCR) is a

a: P-N-P device Explanation

Explanation

b: N-P-N device Explanation

Explanation

c: P-N-P-N device Explanation

Explanation

d: P-N device Explanation

Explanation

2. Which terminal does not belong to the SCR?

a: Anode Explanation

Explanation

b: Gate Explanation

Explanation

c: Base Explanation

Explanation

d: Cathode Explanation

Explanation

3. An SCR is a

a: four-layer, four junction devices Explanation

Explanation

b: four-layer, three junction devices Explanation

Explanation

c: four-layer, two junction devices Explanation

Explanation

d: three-layer, single junction device Explanation

Explanation

4. Which component is responsible for triggering the SCR into conduction?

a: Cathode Explanation

Explanation

b: Gate Explanation

Explanation

c: Anode Explanation

Explanation

d: Base Explanation

Explanation

5. What happens to an SCR when the holding current drops below a certain level?

a: It remains in conduction Explanation

Explanation

b: It turns off Explanation

Explanation

c: It operates as a diode Explanation

Explanation

d: It switches polarity Explanation

Explanation

6. At what condition does the SCR enter a forward blocking mode?

a: High gate voltage Explanation

Explanation

b: No applied voltage Explanation

Explanation

c: Forward voltage below the breakover point Explanation

Explanation

d: Anode-cathode current exceeds the limit Explanation

Explanation

7. How does the SCR primarily differ from a diode in its structure?

a: Additional gate terminal Explanation

Explanation

b: Less power capacity Explanation

Explanation

c: Fewer layers Explanation

Explanation

d: Single junction Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)