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WorksheetsElectronics Engineering Quiz
Total questions: 20
Worksheet time: 11mins
What is the SI unit of resistance?
Ohm
Ampere
Farad
Volt
What does a capacitor store?
Current
Voltage
Charge
Power
Which law states that the algebraic sum of voltages in a loop is zero?
Faraday's Law
Ohm's Law
KCL
KVL
Which signal has discrete values?
Digital
Analog
Sinusoidal
Noise
A diode mainly allows current to flow in:
Reverse direction
Both direction
One direction
No direction at all
Zener diode is mainly used for:
Amplification
Voltage regulation
Rectification
Switching
Which component opposes change in current?
Capacitor
Resistor
Inductor
Diode
Which device is used as an amplifier?
Transistor
Diode
Capacitor
Resistor
Modulation is required to:
Reduce noice
Reduce antenna size
Increase power
Reduce bandwidth
Synchronous communication requires:
Start and stop bits
No clock
Large bandwidth
Common clock signal
MOSFET is a:
Voltage-controlled device
Current-controlled device
Power-controlled device
Resistance-controlled device
SNR is defined as:
Signal + Noise
Noise x Signal
Signal/Noise
Noice/Signal
Negative feedback in amplifiers results in:
Noise increase
Reduced gain and better stability
Lower stability
Higher distortion
Miller effect mainly affects:
Bandwidth
Input resistance
Output resistance
Power rating
Nyquist sampling theorem states that sampling frequency must be:
Twice the signal frequency
Equal the signal frequency
Less than signal frequency
Half the signal frequency
Which phenomenon causes an increase in the effective input capacitance of an amplifier?
(a)
Identify the modulation technique in which the phase of the carrier varies according to the message signal.
(a)
Identify the communication system component that converts electrical signals into electromagnetic waves.
(a)
Identify the logic gate whose output is HIGH only when all inputs are LOW.
(a)
Identify the phenomenon responsible for heat generation in a PN junction due to carrier recombination.
(a)
