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# Materials Used in Electronics Multiple Choice Questions (MCQ) PDF - 4

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## Materials Used in Electronics Questions and Answers : Quiz 4

MCQ 16:

Each atom in a silicon crystal has

1. no valence electrons because all are shared with others atoms
2. eight valence electrons because all are with other atoms
3. four valence electrons
4. four conduction electrons
MCQ 17:

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

1. 60 Hz
2. 0 Hz
3. 120 Hz
4. 50 Hz
MCQ 18:

The minority carriers in the n - type material are the

1. electrons
2. protons
3. holes
4. neutrons
MCQ 19:

The reverse breakdown property of zener was first introduced by the

1. newton
2. graham bell
3. melvin zener
4. hawking
MCQ 20:

The resonant frequency of the Class C amplifier can be determined by the formula

1. 1/(2pi(LC)1/2)
2. 1/(2(LC)1/2)
3. 1/(pi(LC)1/2)
4. 1/(2π(LC))

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