WorksheetsChapter 2 Quiz
Total questions: 25
Worksheet time: 9mins
Which of the following correctly describes Ohm's Law?
A. V = I × R
B. V = I / R
C. R = I / V
D. P = I × V
What is the unit of resistance?
A. Watt
B. Ampere
C. Ohm
D. Volt
In a circuit, what is a node?
A. A closed loop in a circuit
B. A single resistor
C. A point where two or more elements connect
D. A branch with no current
Kirchhoff's Current Law (KCL) states that:
A. The total voltage around a closed loop is zero
B. The algebraic sum of currents entering a node is zero
C. The total resistance in a circuit is always constant
D. The sum of voltages across all elements in series is zero
Which of the following best describes Kirchhoff's Voltage Law (KVL)?
A. The total resistance in a series circuit is equal to the sum of individual resistances
B. The total voltage around any closed loop must be zero
C. The total current entering a node is the same as the current leaving it
D. Voltage is inversely proportional to current
In a series circuit, how is the total resistance calculated?
A. As the sum of the reciprocals of individual resistances
B. As the product of individual resistances
C. By dividing the total voltage by the total current
D. As the sum of individual resistances
How does current divide in a parallel circuit?
A. Inversely proportional to resistance
B. Directly proportional to resistance
C. Equally among all branches
D. Proportional to voltage across the circuit
What happens to the total resistance when resistors are connected in parallel?
A. It increases
B. It decreases
C. It remains constant
D. It depends on the number of resistors
Which of the following correctly represents Kirchhoff's Voltage Law (KVL)?
A. ∑V = 0
B. ∑I = 0
C. V = IR
D. ∑P = 0
If two resistors, 6 Ω and 3 Ω, are connected in series, what is the total resistance?
A. 18 Ω
B. 9 Ω
C. 6 Ω
D. 3 Ω
Which of the following is true for resistors in series?
A. They have the same current
B. They have the same voltage
C. Their resistances add up inversely
D. Power is the same for each resistor
In a parallel circuit, what remains constant across all components?
A. Current
B. Voltage
C. Power
D. Resistance
What is the voltage across a 10 Ω resistor if the current is 2 A?
A. 5 V
B. 12 V
C. 10 V
D. 20 V
What is the sum of the currents at a node according to Kirchhoff's Current Law?
A. Zero
B. Equal to the voltage drop
C. Equal to the total resistance
D. Proportional to the applied voltage
If resistors of 8 Ω and 4 Ω are connected in parallel, what is the total resistance?
A. 12 Ω
B. 6 Ω
C. 2.67 Ω
D. 1.67 Ω
Which of the following statements is correct about parallel resistors?
A. The total resistance is always larger than the smallest individual resistance
B. The total resistance is always smaller than the smallest individual resistance
C. The total resistance is always equal to the sum of individual resistances
D. The total resistance is always equal to the largest individual resistance
What is the correct expression for the total resistance in a parallel circuit with two resistors, R1 and R2?
A. Rtotal=R1+R2
B. 1/Rtotal=1/R1+1/R2
C. Rtotal=R1/R2
D. Rtotal=R1×R2
Which statement about Kirchhoff's Laws is correct?
A. KCL applies to closed loops
B. KVL applies to nodes
C. KVL applies to closed loops, and KCL applies to nodes
D. KCL and KVL are only valid for DC circuits
What happens to the current in a series circuit if one resistor is removed?
A. The current increases
B. The current decreases
C. The current becomes zero
D. The current is unaffected
How is power related to current and voltage in a resistive circuit?
A. P=I/V
B. P=I×V
C. P=I²×V
D. P=V/I
In a circuit with 5 branches, how many current paths exist?
1
3
5
10
How many nodes are there in a simple series circuit containing a battery and three resistors?
1
2
3
4
In a circuit, what is the purpose of a node?
To control the flow of current
To connect multiple branches
To store electrical energy
To dissipate power
In a circuit with 4 nodes and 6 branches, what is the total number of possible independent loops?
2
3
4
5
If a current of 5 A enters a node with three branches, how much current exits through the other two branches if one branch has 2 A flowing through it?
3 A
5 A
2 A
7 A
