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WorksheetsCapacitor Quiz
Total questions: 21
Worksheet time: 42mins
Who were the inventors of the capacitor?
James Watt and Michael Faraday
Thomas Edison and Nikola Tesla
Ewald Georg von Kleist and Pieter van Musschenbroek
Albert Einstein and Isaac Newton
Match the following functions with their descriptions:
To convert electrical energy to mechanical energy
Function of an electric motor
To store electrical energy
Function of a capacitor
To generate electrical energy
Function of a generator
To amplify electrical signals
Function of an amplifier
What is the unit of capacitance?
Ohm
Volt
Watt
Farad
The dielectric in a capacitor is (a)
What happens when a capacitor is connected across a battery?
The capacitor becomes a resistor
The capacitor generates electricity
The capacitor discharges completely
An electric field develops across the dielectric
What is the historical name for a capacitor?
Condenser
Accumulator
Transformer
Inductor
What is the hydraulic analogy for a capacitor?
An elastic diaphragm within a pipe
A water pump
A water turbine
A water reservoir
What is the effect of dielectric absorption in capacitors?
It causes the capacitor to regain some charge after being discharged
It increases the capacitance
It decreases the capacitance
It makes the capacitor a perfect insulator
What is the equivalent circuit of a real capacitor?
A battery in parallel with a resistor
A resistor in series with an inductor
A perfect capacitor
A capacitor with series inductance and resistance, and parallel conductance
What is the breakdown voltage of a capacitor?
The voltage at which the dielectric becomes conductive
The maximum voltage the capacitor can store
The voltage at which the capacitor explodes
The voltage at which the capacitor stops working
What is the Q factor of a capacitor?
The ratio of resistance to inductance
The ratio of voltage to current
The ratio of capacitive reactance to resistance
The ratio of current to voltage
What is the primary use of electrolytic capacitors?
Power-supply conditioning
High-frequency applications
Audio applications
Temperature-critical circuits
The effect of temperature on electrolytic capacitors is (a)
What is the primary material used in ceramic capacitors?
Ceramic
Plastic
Glass
Paper
What is the primary characteristic of supercapacitors?
Low voltage rating
Very high capacitance
Very low capacitance
High voltage rating
What is the role of the dielectric material in a capacitor?
To conduct electricity
To store electrical energy
To increase the capacitance
To decrease the capacitance
(a) is known for its stability and low leakage current.
What happens to the capacitance if the plate area of a capacitor is increased?
It decreases
It remains the same
It increases
It becomes zero
What happens to the capacitance if the distance between the plates of a capacitor is increased?
It decreases
It remains the same
It increases
It becomes infinite
What is the primary use of a variable capacitor?
To store electrical energy
To adjust frequency in radio tuners
To amplify electrical signals
To convert AC to DC
Match the following statements with their effects on total capacitance when capacitors are connected in series.
The total capacitance increases
Connecting capacitors in series
The total capacitance decreases
Connecting capacitors in parallel
The total capacitance remains the same
Connecting capacitors with equal capacitance in series
The total capacitance becomes zero
Connecting capacitors with different capacitance in series
