WorksheetsQuiz on Potential Difference and Resistance in Electricity
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the unit of measurement for potential difference?
a)
Amperes
b)
Volts
c)
Ohms
d)
Joules
2.
Which formula correctly represents potential difference?
a)
V = E × Q
b)
V = E / Q
c)
V = Q / E
d)
V = E + Q
3.
What does 'E' represent in the potential difference formula?
a)
Electricity
b)
Energy
c)
Electrons
d)
Efficiency
4.
How is potential difference related to current according to Ohm's Law?
a)
V = I / R
b)
V = I × R
c)
V = R / I
d)
V = I + R
5.
Which instrument is used to measure potential difference?
a)
Ammeter
b)
Voltmeter
c)
Ohmmeter
d)
Wattmeter
6.
How should a voltmeter be connected in a circuit?
a)
In series
b)
In parallel
c)
Both in series and parallel
d)
Neither in series nor parallel
7.
What is the unit of measurement for resistance?
a)
Amperes
b)
Volts
c)
Ohms
d)
Watts
8.
Which formula correctly represents resistance?
a)
R = V × I
b)
R = I / V
c)
R = V / I
d)
R = V + I
9.
If the potential difference across a component increases, what happens to the current (assuming constant resistance)?
a)
Decreases
b)
Increases
c)
Remains the same
d)
Becomes zero
10.
What happens to the resistance if the current through a component increases while the potential difference remains constant?
a)
Increases
b)
Decreases
c)
Remains the same
d)
Becomes infinite
11.
Which of the following would likely have the highest resistance?
a)
A thick copper wire
b)
A thin copper wire
c)
A thick aluminum wire
d)
A superconductor
12.
If the potential difference across a resistor is 12V and the current flowing through it is 2A, what is its resistance?
a)
6Ω
b)
10Ω
c)
14Ω
d)
24Ω
13.
What would happen to the current in a circuit if the potential difference is doubled and the resistance remains constant?
a)
It would double
b)
It would halve
c)
It would remain the same
d)
It would become zero
14.
How is potential difference (V) mathematically defined?
a)
V = I × R
b)
V = E/Q
c)
V = Q/t
d)
V = R/I
15.
According to Ohm's Law, what is the relationship between potential difference (V), current (I), and resistance (R)?
a)
V = I + R
b)
V = I × R
c)
V = I/R
d)
V = R/I
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