DC Theory Lesson 3

Thevenin's Theorem states that any two-terminal source can be reduced to an opencircuit voltage and an equivalent resistance in series with the voltage.

Select one:

True

False

Norton's Theorem states that any two-terminal source can be reduced to a maximum current and an equivalent shunt resistance.

Select one:

True

False

Find the current for an 11.5 ohm resistor connected as the load for the Thevenin's equivalent circuit.

Given the circuit shown, find the voltage drop on a load resistor with a value of 13.9 ohms if R = 0.5 ohms and E = 18 volts. (Round the FINAL answer to two decimal places of the specified unit.)

ERL = ? V

Given the circuit shown, find the voltage drop on a load resistor with a value of 5.4 ohms if I = 52 amperes and R = 0.5 ohms. (Round the FINAL answer to two decimal places of the specified unit.)

ERL = ? V

Given the circuit and parameters shown, reduce the circuit to Thevenin’s equivalent circuit, and solve for the following: (Round the FINAL answers to whole numbers in the specified unit.)

RT = ? Ω

IT = ? mA

ETH = ? V

RTH = ? Ω

Using the Thevenin's equivalent circuit values from Question 6, calculate the current flow through a load resistor of 1 Ω. Calculate to one decimal place.

Using the Thevenin’s equivalent circuit values from Questions 6 and 7, calculate how much power is dissipated by the 1 ohm load. Calculate to two decimal places.

Using the Thevenin's equivalent circuit values, calculate the current flow through a load resistor of 2 ohms. Calculate to three decimal places.

How much power is dissipated by the 2 ohm load? Calculate to one decimal place.

Using the Thevenin's equivalent circuit values, calculate the current flow through a load resistor of 4 ohms. Calculate to one decimal place.

How much power is dissipated by the 4 ohm load? Calculate to one decimal place.

Using the Thevenin's equivalent circuit values, calculate the current flow through a load resistor of 8 ohms. Calculate to three decimal places.

How much power is dissipated by the 8 ohm load? Calculate to two decimal places.

Using the Thevenin's equivalent circuit values, calculate the current flow through a load resistor of 12 ohms. Calculate to one decimal place.

How much power is dissipated by the 12 ohm load? Calculate to one decimal place.

Using the Thevenin's equivalent circuit values, calculate the current flow through a load resistor of 15 ohms. Calculate to three decimal places.

How much power is dissipated by the 15 ohm load?

Calculate to two decimal places.

Given the circuit and parameters shown, convert the circuit to a Norton’s equivalent and solve for the following:

In = ? A

Rn = ? Ω

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (RLOAD ) with a value of 1 ohm. Calculate to one decimal place.

Calculate the power dissipated by the 1 ohm load resistor (RLOAD ). Calculate to two

decimal places.

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (R ) with a value of 2 ohms. Calculate to three decimal places.

Calculate the power dissipated by the 2 ohm load resistor (RLOAD ). Calculate to one

decimal place.

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (RLOAD ) with a value of 4 ohms. Calculate to one decimal place.

Calculate the power dissipated by the 4 ohm load resistor (R ). Calculate to one

decimal place.

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (RLOAD ) with a value of 8 ohms. Calculate to three decimal places.

Calculate the power dissipated by the 8 ohm load resistor (RLOAD ). Calculate to one

decimal place.

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (RLOAD ) with a value of 12 ohms. Calculate to one decimal place.

Calculate the power dissipated by the 12 ohm load resistor (RLOAD ).

Using the Norton's equivalent circuit values from previous questions, calculate the current flow through a load resistor (RLOAD ) with a value of 15 ohms. Calculate to three decimal places.

Calculate the power dissipated by the 15 ohm load resistor (RLOAD ). Calculate to two decimal places.

The values calculated for current and power are not the same using Norton's Theorem as they are when using Thevenin's Theorem.

Select one:

True

False

Maximum power will be delivered to the load when RLOAD = RTH = RN .

Select one:

True

False

Given the circuit and parameters shown, solve for the current through the load resistor using Thevenin’s Theorem. (Round the FINAL answer to at least two decimal places in

the specified unit.)

IRL = ? A

Given the circuit and parameters shown, solve for the current through the load resistor using Norton’s Theorem. (Round the FINAL answer to at least two decimal places in the specified unit.)

IRL = ? A