Electronics and Communication Engineering - Power Electronics

36.
The total number of leads in MOS controlled thyristor is
2
3
4
2 or 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.

Assertion (A): Chopper always requires forced commutation

Reason (R): Morgan chopper uses a saturable reactor.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
In a power diode the reverse recovery time is the time from the instant the forward current is zero to the instant when reverse recovery current has decayed to
50% of peak reverse current
25% of peak reverse current
10% of peak reverse current
zero value
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.

Assertion (A): McMurray Bredford half bridge inverter uses complementary commutation

Reason (R): Three phase inverter can have two modes of operation.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
A capacitor C farads is charged to a voltage V. It discharges through a thyristor, a diode and an inductance L. The peak current in the circuit is
VCL
Answer: Option
Explanation:
No answer description is available. Let's discuss.