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 12
A circuit has three resistors (2 Ω, 3 Ω, 5 Ω) in series with a 10 V battery. Using KVL, calculate the current in the circuit.
A circuit has two batteries (6 V and 4 V) and two resistors (2 Ω and 3 Ω) in series. What is the current in the circuit?
A circuit has two loops and three junctions. How many independent equations can you write using Kirchhoff’s Laws?
A circuit loop contains a 12 V battery and three resistors (2 Ω, 4 Ω, and 6 Ω) in series. Using KVL, what is the voltage drop across the 4 Ω resistor if the current is the same through all resistors?
Describe a situation where the application of Kirchhoff’s Laws is necessary to solve a circuit.
Describe the steps involved in solving a circuit using Kirchhoff’s Laws.
Explain why Kirchhoff’s Laws may not be valid in the presence of a time-varying magnetic field.
Explain why the direction of current is important when applying Kirchhoff’s Laws.
In a circuit, if the algebraic sum of voltages around a loop is not zero, what does this indicate?
In a circuit, three wires meet at a junction. If the currents in two of the wires are 3 A and 5 A entering the junction, and the third wire is leaving the junction, what is the current in the third wire?
State Kirchhoff’s Current Law (KCL).
State Kirchhoff’s Voltage Law (KVL).
