If the a.c. input to a half-wave rectifier is an r.m.s value of $$\frac{{400}}{{\sqrt 2 }}$$ volts, then diode PIV rating is ___________
A. $$\frac{{400}}{{\sqrt 2 }}{\text{ V}}$$
B. 400 V
C. $$400 \times \sqrt 2 {\text{ V}}$$
D. None of the above
Answer: Option B
This Question Belongs to Electrical Engineering >> Semiconductor Diode
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Comments ( 2 )
If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is ___________ biased.
A. forward
B. reverse
C. either forward or reverse
D. none of the above
In the breakdown region, a zener didoe behaves like a ___________ source.
A. constant voltage
B. constant current
C. constant resistance
D. none of the above
When the crystal current diode current is large, the bias is ___________
A. forward
B. inverse
C. poor
D. reverse
If the temperature of a crystal diode increases, then leakage current ___________
A. remains the same
B. decreases
C. increases
D. becomes zero
Option (c) is correct Vrms =Vm/2
for half wave rectifier, PIV rating is Vm i.e peak max voltage
Here, Vrms= 400/sqrt2
Vrms=Vm/2 for half wave rectifier, therefore, Vm=800/sqrt2= 400 X( sqrt 2) i.e option (c)