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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 5
16.
When a power diode is conducting, the voltage drop across it is about
I V
5 V
20 V
50 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
In thermal ohm's law, temperature and power loss are analogous to
V and I respectively of ohm's law
I and V respectively of ohm's law
R and V respectively of ohm's law
I and R respectively of ohm's law
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
A string of series connected thyristors needs equalising circuit to
ensure proper firing
ensure proper current division
ensure proper voltage division
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
A surge voltage
has very high magnitude and very long duration
has very high magnitude and very small duration
has very high magnitude and very small duration and can be positive or negative
can be only positive
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The minimum gate current which can turn on SCR is called :
trigger current
holding current
junction current
breakover current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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