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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 6
46.
In rectifier circuits, the rms value of ac component of output voltage is equal to
Vrms
0.5 Vrms
(Vrms - Vdc)0.5
(Vrms2 - Vdc2)0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
A UJT exhibits negative resistance characteristics when
Current is less than valley current
Current is less than peak current
Current is more than peak current but less than valley current
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
A dc chopper feeds an RLE load and has a duty cycle of 1. The load current will be such that
Imax > Imin
Imin > 0
Imin < 0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
In rectifier circuits, ripple factor RF and form factor FF are related as
RF = (FF2 - 1)0.5
RF = FF
RF = FF - 1
RF = (FF - 1)0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
If we connect two silicon unilateral switches in anti- parallel we get
SCR
SBS
SCS
UJT
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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