### Thevenin Theorem mcqs in network theorem in electrical engineering.

Thevenin’s Theorem allows us to replace a complex circuit with a **__**.

a) Voltage source and series resistance

b) Current source and parallel resistance

c) Voltage source and parallel resistance

d) Current source and series resistance

Answer: a) Voltage source and series resistance

Explanation: Thevenin’s Theorem allows us to replace a complex circuit with a simplified equivalent circuit consisting of a voltage source and series resistance.

The Thevenin voltage is the **__** voltage across the terminals of the circuit.

a) Total

b) Maximum

c) Minimum

d) Average

Answer: a) Total

Explanation: The Thevenin voltage is the total voltage across the terminals of the circuit, measured with no load connected.

The Thevenin resistance is the **__** resistance as viewed from the terminals of the circuit.

a) Equivalent

b) Total

c) Internal

d) External

Answer: a) Equivalent

Explanation: The Thevenin resistance is the equivalent resistance as viewed from the terminals of the circuit when all independent sources are turned off.

The Thevenin equivalent circuit consists of a voltage source in series with the Thevenin **__**.

a) Resistance

b) Reactance

c) Capacitance

d) Inductance

Answer: a) Resistance

Explanation: The Thevenin equivalent circuit consists of a voltage source in series with the Thevenin resistance.

The Thevenin voltage is equal to the **__** voltage of the original circuit.

a) Open-circuit

b) Short-circuit

c) Average

d) RMS

Answer: a) Open-circuit

Explanation: The Thevenin voltage is equal to the open-circuit voltage of the original circuit, measured with no load connected.

The Thevenin resistance is calculated by **__** the independent sources and determining the resistance across the terminals.

a) Removing

b) Adding

c) Shorting

d) Opening

Answer: a) Removing

Explanation: The Thevenin resistance is calculated by removing the independent sources (voltage sources are replaced with short circuits and current sources are replaced with open circuits) and determining the resistance across the terminals.

Thevenin’s Theorem can be used to analyze **__** circuits.

a) AC

b) DC

c) Both AC and DC

d) None of the above

Answer: c) Both AC and DC

Explanation: Thevenin’s Theorem can be used to analyze both AC and DC circuits.

The Thevenin equivalent circuit is valid for **__** loads connected to the terminals.

a) Any

b) Resistive

c) Capacitive

d) Inductive

Answer: a) Any

Explanation: The Thevenin equivalent circuit is valid for any loads connected to the terminals, including resistive, capacitive, and inductive loads.

The Thevenin equivalent circuit provides an accurate representation of the original circuit’s behavior **__** the terminals.

a) Outside

b) Near

c) Between

d) Inside

Answer: c) Between

Explanation: The Thevenin equivalent circuit provides an accurate representation of the original circuit’s behavior between the terminals.

The Thevenin voltage is equal to the voltage **__** when a load is connected to the Thevenin equivalent circuit.

a) Across the load

b) Across the Thevenin resistance

c) Across the terminals of the original circuit

d) Across the Thevenin voltage source

Answer: b) Across the Thevenin resistance

Explanation: The Thevenin voltage is equal to the voltage across the Thevenin resistance when a load is connected to the Thevenin equivalent circuit.

The Thevenin resistance is calculated by applying a test **__** across the terminals of the original circuit.

a) Current

b) Voltage

c) Power

d) Impedance

Answer: b) Voltage

Explanation: The Thevenin resistance is calculated by applying a test voltage across the terminals of the original circuit and measuring the resulting current.

The Thevenin resistance is calculated using **__** Law.

a) Kirchhoff’s

b) Ohm’s

c) Faraday’s

d) Ampere’s

Answer: b) Ohm’s

Explanation: The Thevenin resistance is calculated using Ohm’s Law by dividing the test voltage by the resulting current.

The Thevenin voltage and Thevenin resistance are **__** related to the original circuit.

a) Directly

b) Inversely

c) Not

d) Partially

Answer: a) Directly

Explanation: The Thevenin voltage and Thevenin resistance are directly related to the original circuit.

The Thevenin resistance is equal to the **__** resistance of the original circuit when all independent sources are turned off.

a) Maximum

b) Minimum

c) Total

d) Average

Answer: c) Total

Explanation: The Thevenin resistance is equal to the total resistance of the original circuit when all independent sources are turned off.

The Thevenin equivalent circuit is often used to analyze the **__** behavior of a complex circuit.

a) Steady-state

b) Transient

c) Resonant

d) Oscillatory

Answer: a) Steady-state

Explanation: The Thevenin equivalent circuit is often used to analyze the steady-state behavior of a complex circuit.