Electronic Principles - Part 1 Online Exam Quiz

Electronic Principles - Part 1 GK Quiz. Question and Answers related to Electronic Principles - Part 1. MCQ (Multiple Choice Questions with answers about Electronic Principles - Part 1

In an intrinsic semiconductor, the number of free electrons

Options

A : Equals the number of holes

B : Is less than the number of holes

C : Is greater than the number of holes

D : Impossible to say

A device that converts mechanical into electrical energy is?

Options

A : solar cell

B : thermocouple

C : chemical cell

D : generator

Which one of the following kinds of materials has the lowest permeability?

Options

A : A diamagnetic material

B : A paramagnetic material

C : A feiTomagnetic material

D : All of the above

The total impedance of a parallel RLC circuit:

Options

A : always increases as the applied frequency increases

B : is equal to the sum of the values of resistance, inductive reactance and capacitive reactance

C : always decreases as the applied frequency increases

D : is maximum at the resonant frequency

The rise time of a pulse waveform is the time required for the voltage to rise:

Options

A : from zero to its rms value

B : from zero to its peak value

C : from 10% of the peak value to 70.7% of the peak value

D : from 10% of the peak value to 90% of the peak value

For a pure capacitor:

Options

A : ac current and voltage are exactly in phase

B : ac current leads the voltage by 90 degree

C : ac current is converted to dc voltage

D : ac current lags the voltage by 90 degree

Options

A : rotor

B : armature

C : battery

D : commutator

In a pure inductor:

Options

A : ac current leads the voltage by 90 degree

B : ac current and voltage are exactly in phase

C : ac current lags the voltage by 90 degree

D : ac current is converted to dc voltage

Waveforms are graphs that show:

Options

A : frequency on the vertical axis and amplitude on the horizontal axis

B : amplitude on the vertical axis and frequency on the horizontal axis

C : amplitude on the vertical axis and the passage of time on the horizontal axis

D : the passage of time on the vertical axis and amplitude on the horizontal axis

When the collector current increases, what does the current gain do?

Options

A : decreases

B : stays the same

C : increases

D : any of the above

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