WorksheetsUnderstanding Ohm's Law Concepts
Total questions: 24
Worksheet time: 24mins
Match the following electrical quantities with their relationships according to Ohm's Law.
Voltage, Current, and Power
Relationship involving power calculation
Voltage, Current, and Resistance
Ohm's Law relationship
Resistance, Power, and Capacitance
Relationship involving capacitance and power
Voltage, Capacitance, and Inductance
Relationship involving voltage and inductance
If a circuit has a voltage of 12 volts and a current of 2 amperes, what is the resistance?
6 ohms
24 ohms
0.5 ohms
10 ohms
What is the formula for Ohm's Law?
V=I×R
P=I×V
R=IV
I=VP
Match the following descriptions with the correct statement about resistance in a series circuit.
It is the sum of the individual resistances.
Total resistance in a series circuit.
It is the product of the individual resistances.
Resistance calculation for resistors in parallel.
It is the average of the individual resistances.
Resistance calculation method not applicable to series circuits.
It is the reciprocal of the sum of the reciprocals of the individual resistances.
Method used for calculating equivalent resistance in parallel circuits.
The unit of measurement for resistance is (a)
If a resistor has a resistance of 10 ohms and the current flowing through it is 3 amperes, what is the voltage across the resistor?
30 volts
3 volts
10 volts
13 volts
In a parallel circuit, how does the total current compare to the individual branch currents?
It is the sum of the individual branch currents.
It is the product of the individual branch currents.
It is the average of the individual branch currents.
It is the same as the largest branch current.
What is the power dissipated by a resistor with a resistance of 5 ohms and a current of 2 amperes flowing through it?
10 watts
20 watts
5 watts
40 watts
The correct unit for measuring electrical power is (a)
If the voltage across a circuit is doubled, what happens to the current, assuming resistance remains constant?
It doubles.
It halves.
It remains the same.
It quadruples.
Match the following configurations with their equivalent resistances.
5 ohms
Two 10 ohm resistors in parallel
10 ohms
One 10 ohm resistor
20 ohms
Two 10 ohm resistors in series
15 ohms
Three 5 ohm resistors in series
If a circuit has a power supply of 50 watts and a voltage of 10 volts, what is the current flowing through the circuit?
5 amperes
10 amperes
0.5 amperes
2 amperes
What is the relationship between voltage and current in a conductor, according to Ohm's Law?
They are inversely proportional.
They are directly proportional.
They are unrelated.
They are exponentially related.
In a series circuit with a total resistance of 15 ohms and a current of 2 amperes, what is the total voltage?
30 volts
7.5 volts
15 volts
3 volts
Match the following units with their corresponding electrical quantities.
Volt
Unit of Voltage
Ampere
Unit of Current
Ohm
Unit of Resistance
Watt
Unit of Power
If a 60-watt light bulb operates at a voltage of 240 volts, what is the current flowing through the bulb?
0.25 amperes
4 amperes
2.5 amperes
0.5 amperes
The total resistance in a parallel circuit (a) if more resistors are added.
Match the following circuit parameters with their power consumption.
32 watts
Resistance: 8 ohms, Current: 4 amperes
16 watts
Resistance: 4 ohms, Current: 4 amperes
64 watts
Resistance: 16 ohms, Current: 4 amperes
8 watts
Resistance: 2 ohms, Current: 4 amperes
The unit of measurement for voltage is (a) .
In a series circuit, if one resistor is removed, what happens to the total resistance?
It increases.
It decreases.
It remains the same.
It becomes zero.
If a circuit has a voltage of 120 volts and a resistance of 30 ohms, what is the current flowing through the circuit?
4 amperes
3 amperes
2 amperes
1 ampere
What is the equivalent resistance of three 6 ohm resistors connected in series?
2 ohms
18 ohms
12 ohms
6 ohms
If a circuit has a power of 100 watts and a current of 5 amperes, what is the voltage across the circuit?
20 volts
25 volts
5 volts
50 volts
In a parallel circuit, if one branch is removed, what happens to the total current?
It increases.
It decreases.
It remains the same.
It becomes zero.
