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A rectifier is an electronic device which converts alternating current into direct current.

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Important Questions on Electron Emission

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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier

Correct the following sentence:

Minimum number of diodes for a full-wave rectifier is one.

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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
The efficiency of a full-wave rectifier is nearly _____ when rp<<<RL.
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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
In a half-wave rectifier, the RMS value of a.c components is
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage  200 sin 100 πt volt is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate the average current.
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage  200 sin 100 πt V is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate the rectification efficiency of the rectifier.
EASY
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
The output voltage of a full-wave rectifier is _____ voltage.
HARD
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
When rp<<<RL, The efficiency of a full-wave rectifier is nearly ______ %. (Round off the answer to a single decimal place.)
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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
which of the following is correct 
EASY
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier

Correct the following sentence:

A diode as a rectifier converts a.c to steady d.c.

MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
Specify the most common use of a diode valve?
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage  200 sin 100 πt  V is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate the r.m.s. value of current.
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage  200 sin 100 πt   V is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate d.c. power output.
EASY
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A single diode can be used for full-wave rectifier.
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage 200 sin 100 πt volt is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate peak current.
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
In a full-wave rectifier circuit operating from 50Hz mains frequency, the fundamental frequency of its output is
EASY
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
Draw the circuit diagram of a diode valve used as a rectifier.
EASY
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
Cotyledons are also called-
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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A diode as a rectifier converts 
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Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
What is the maximum efficiency of an (i) half-wave rectifier and (ii) full-wave rectifier?
MEDIUM
Physics>Modern Physics>Electron Emission>Vacuum Diode as Rectifier
A voltage  200 sin 100 πt V is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate a.c. power input.