Electronics and Communication Engineering - Power Electronics

26.
A single phase converter is fed by a source having an inductance L. If load current is I0, the decrease in output voltage due to overlap is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.

Assertion (A): An ac regulator uses natural commutation

Reason (R): An ac regulator can be used for static on load tap changing of transformer.

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.

28.
When a UJT is used as a relaxation oscillator the current should be
less than Ip
more than Iv
more than Ip but less than Iv
negative
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
In auxiliary commutated chopper, the charging and discharging time of capacitor
are constant
depend on load current
may be constant or may depend on load current
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
Which chopper circuit uses saturable reactor?
Auxiliary commutated
Jones chopper
Morgan chopper
Load commutated
Answer: Option
Explanation:
No answer description is available. Let's discuss.