Basic Concepts of Electricity and Circuits Quiz

Test your knowledge on electric current, resistance, components, laws, and more with this circuit theory quiz!

#1

What is the unit of electric current?

Volt
Ampere
Ohm
Watt
2 answered
#2

Which material is commonly used as a conductor in electrical wires?

Plastic
Rubber
Copper
Wood
2 answered
#3

Which of the following is a passive electronic component?

Transistor
Capacitor
Diode
Integrated circuit
2 answered
#4

What is the unit of electrical capacitance?

Farad
Hertz
Henry
Tesla
2 answered
#5

What is the SI unit of electrical resistance?

Ampere
Volt
Ohm
Watt
2 answered
#6

In a series circuit, how does the total resistance compare to the individual resistances?

It is equal to the sum of the individual resistances
It is less than the sum of the individual resistances
It is greater than the sum of the individual resistances
It is not related to the individual resistances
2 answered
#7

What is the formula to calculate electrical power?

P = IV
P = V^2/R
P = IR
P = I/R
2 answered
#8

What does a resistor do in an electrical circuit?

Increases voltage
Decreases current
Stores energy
Maintains constant resistance
2 answered
#9

What is the purpose of a diode in an electrical circuit?

To control current flow
To increase resistance
To store energy
To decrease voltage
3 answered
#10

Which law states that the total voltage around a closed loop must be equal to the sum of the voltage drops within the loop?

Kirchhoff's Current Law
Kirchhoff's Voltage Law
Ohm's Law
Faraday's Law
2 answered
#11

Which law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points?

Kirchhoff's Current Law
Kirchhoff's Voltage Law
Ohm's Law
Faraday's Law
2 answered
#12

What is the purpose of a capacitor in an electrical circuit?

To control current flow
To increase resistance
To store energy
To decrease voltage
2 answered

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