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
The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the:
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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