Basic Electronics 1

A visually engaging representation of semiconductors, diodes, and electronic components, featuring infographics and circuit diagrams.

Basic Electronics Quiz

Test your knowledge of semiconductor technology, diodes, and rectifiers with our Basic Electronics Quiz! This quiz is designed for students, enthusiasts, and professionals seeking to enhance their understanding of electronic concepts.

Key features of the quiz:

22 multiple choice questions
Covers fundamental principles of basic electronics
Score and evaluate your understanding

22 Questions6 MinutesCreated by WiringWizard435

Each atom in a silicon crystal has

Four valence electrons

four conduction electrons

eight valence electrons, four of its own and four shared

No valence electrons because all are shared with other atoms

.The current in a semiconductor is produced by

electrons only

holes only

negative ions

Both electrons and holes

The process of adding an impurity to an intrinsic semiconductor is called

doping

recombination

Atomic modification

Ionization

A trivalent impurity is added to silicon to create

germanium

a p-type semiconductor

an n-type semiconductor

a depletion region

The purpose of pentavalent impurity is to

reduce the conductivity

increase the number of holes

increase the number of free electrons

Create minority carriers

For a silicon diode, the value of the forward-bias voltage typically

must be greater than 0.3V

must be greater than 0.7V

depends on the width of depletion region

Depends on the concentration of majority carriers

When a voltmeter is placed across a forward-biased diode, it will read a voltage approximately equal to

the bias battery voltage

the diode barrier potential

the total circuit voltage

The term bias means

the ration of majority carriers to minority carriers

the amount of current across a diode

a dc voltage is applied to control the operation of a device

none of the above

In a LED, the light is produced by a solid state process called as

light radiation

electroluminescence

light multiplication

phospherence

Efficiency of LED is given by

light to light conversion

light to electrical conversion

electrical power to visible light conversion

none of above

The wavelength of the light emitted and its color depends on the

forward voltage

forward current

band gap energy of the material forming P-N junction

none of the above

.Although current is blocked in reverse bias,

there is some current due to majority carrier

there is very small current due to minority carriers

there is an avalanche current

none of the above

When a 60Hz sinusoidal voltage is applied to the input of a half-wave rectifier, the output frequency is

120Hz

30Hz

60Hz

0Hz

The peak value of the input to a half-wave rectifier is 10V.The approximate peak value of the output is

10V

3.18V

10.7V

9.3V

When a 60Hz sinusoidal voltage is applied to the input of a full-wave rectifier, the output frequency is

120Hz

60Hz

240Hz

0Hz

.The ideal dc output voltage of a capacitor-input filter is equal to

The peak value of the rectified voltage

The average value of the rectified voltage

The rms value of the rectified voltage

None of the above

.If the load resistance of a capacitor-filtered full-wave rectifier is reduced, the ripple voltage

increases

decreases

is not affected

has a different frequency

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Basic Electronics 1

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