Kirchhoff’s Laws
Physics ⇒ Electricity and Magnetism
Kirchhoff’s Laws starts at 11 and continues till grade 12.
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See sample questions for grade 11
A circuit has two loops sharing a resistor. How does Kirchhoff’s Laws help in finding the current through the shared resistor?
Describe a situation where Kirchhoff’s Voltage Law would not hold true.
Describe the sign convention used when applying Kirchhoff’s Voltage Law in a loop.
Describe the steps involved in solving a circuit using Kirchhoff’s Laws.
A circuit consists of a 10 V battery and two resistors (5 Ω and 5 Ω) in series. What is the current in the circuit?
A circuit has a battery of 9 V and two resistors of 3 Ω and 6 Ω in series. What is the voltage drop across the 6 Ω resistor?
A circuit has a junction where 3 A enters, 2 A leaves, and I leaves. Find I.
A circuit has a loop with a 24 V battery and three resistors (4 Ω, 4 Ω, and 8 Ω) in series. What is the current in the loop?
Which law is used to analyze complex electrical circuits with multiple loops and junctions? (1) Ohm’s Law (2) Faraday’s Law (3) Kirchhoff’s Laws (4) Coulomb’s Law
Which of the following is a correct application of KCL? (1) At a junction, 2 A enters and 3 A leaves. (2) At a junction, 5 A enters and 5 A leaves. (3) At a junction, 4 A enters and 2 A leaves. (4) At a junction, 3 A enters and 1 A enters.
Which of the following is a correct statement of KVL? (1) The sum of all currents in a loop is zero. (2) The sum of all voltages in a loop is zero. (3) The sum of all resistances in a loop is zero. (4) The sum of all EMFs in a loop is zero.
Which of the following is NOT a consequence of Kirchhoff’s Laws? (1) Charge is conserved at a junction. (2) Energy is conserved in a loop. (3) Resistance is always constant. (4) The sum of currents at a node is zero.
Fill in the blank: According to Kirchhoff’s Current Law, the algebraic sum of currents at a junction is _______.
Fill in the blank: In a closed loop, the algebraic sum of all EMFs and potential drops is _______.
Fill in the blank: The algebraic sum of all currents at a junction is _______ according to KCL.
Fill in the blank: The algebraic sum of currents at a node is always _______.
True or False: Kirchhoff’s Laws are only applicable to circuits with resistors.
True or False: Kirchhoff’s Laws can be applied to both AC and DC circuits.
True or False: Kirchhoff’s Laws can be used to analyze circuits with capacitors and inductors.
True or False: Kirchhoff’s Voltage Law is based on the law of conservation of energy.
