Related Questions

For the same secondary voltage, the output voltage from a centre-tap rectifier is ___________ than that of bridge rectifier
A twice
B thrice
C four time
D one-half
The PIV rating of each diode in a bridge rectifier is ___________ that of the equivalent centre-tap rectifier
A one-half
B the same as
C twice
D four times
If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by
A 0.6 Hs and 1.67 Hs
B 0.6 Hs and 1.87 Hs
C 1.27 Hs and 1.87 Hs
D 1.27 Hs and 1.67 Hs
The disadvantage of a half-wave rectifier is that the___________
A components are expensive
B diodes must have a higher power rating
C output is difficult to filter
D none of the above
In a half wave rectifier, the load current flows
A Only for the positive half cycle of the input signal
B Only for the negative half cycle of the input signal
C For full cycle
D For less than fourth cycle
The ripple factor of a half-wave rectifier is ___________
A 2
B 1.21
C 2.5
D 0.48
The maximum efficiency of a half-wave rectifier is ___________
A 40.6%
B 81.2%
C 50%
D 25%
A train 150 meter long and running at a speed of 60 km per hour takes 30 seconds to cross a bridge. what is a length of the bridge?
A 450 meter
B 500 meter
C 350 meter
D 650 meter
A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in meters) is-
A 600
B 750
C 1000
D 1250
The Jamuna bridge is the ---largest bridge in the world.
A 5th
B 9th
C 10th
D 93th

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