ECE(ECT) BOARD EXAMS REVIEWER
(PART 1) QUESTIONS & VALID
COMPLETE ANSWERS
An ideal voltage source has - Correct Answer ✔✔ Zero internal resistance
A real voltage source has - Correct Answer ✔✔ A small internal resistance
An ideal current source has - Correct Answer ✔✔ Infinite internal resistance
If a load resistance is 1k ohm, a stiff voltage source has a resistance of - Correct
Answer ✔✔ Less than 10 ohm
A real current source has - Correct Answer ✔✔ A large internal resistance
If a load resistance is 1k ohm, a stiff current source has a resistance of - Correct
Answer ✔✔ More than 100k ohm
The Thevenin voltage is the same as the - Correct Answer ✔✔ Open-load voltage
The Thevenin resistance is equal in value to the - Correct Answer ✔✔ Internal
resistance of a Norton circuit
To get the Thevenin voltage, you have to - Correct Answer ✔✔ Open the load resistor
A solder bridge - Correct Answer ✔✔ may produce a short
To get the Norton current, you have to - Correct Answer ✔✔ Short the load resistor
The Norton current is sometimes called the - Correct Answer ✔✔ Shorted-load current
A cold-solder joint - Correct Answer ✔✔ usually produces an open
An open resistor has - Correct Answer ✔✔ Zero current through it
A shorted resistor has - Correct Answer ✔✔ Zero voltage across it
An ideal voltage source and an internal resistance is an example of the - Correct
Answer ✔✔ Second approximation
Treating a connecting wire as a conductor with zero resistance is an example of the -
Correct Answer ✔✔ Ideal approximation
(PART 1) QUESTIONS & VALID
COMPLETE ANSWERS
An ideal voltage source has - Correct Answer ✔✔ Zero internal resistance
A real voltage source has - Correct Answer ✔✔ A small internal resistance
An ideal current source has - Correct Answer ✔✔ Infinite internal resistance
If a load resistance is 1k ohm, a stiff voltage source has a resistance of - Correct
Answer ✔✔ Less than 10 ohm
A real current source has - Correct Answer ✔✔ A large internal resistance
If a load resistance is 1k ohm, a stiff current source has a resistance of - Correct
Answer ✔✔ More than 100k ohm
The Thevenin voltage is the same as the - Correct Answer ✔✔ Open-load voltage
The Thevenin resistance is equal in value to the - Correct Answer ✔✔ Internal
resistance of a Norton circuit
To get the Thevenin voltage, you have to - Correct Answer ✔✔ Open the load resistor
A solder bridge - Correct Answer ✔✔ may produce a short
To get the Norton current, you have to - Correct Answer ✔✔ Short the load resistor
The Norton current is sometimes called the - Correct Answer ✔✔ Shorted-load current
A cold-solder joint - Correct Answer ✔✔ usually produces an open
An open resistor has - Correct Answer ✔✔ Zero current through it
A shorted resistor has - Correct Answer ✔✔ Zero voltage across it
An ideal voltage source and an internal resistance is an example of the - Correct
Answer ✔✔ Second approximation
Treating a connecting wire as a conductor with zero resistance is an example of the -
Correct Answer ✔✔ Ideal approximation
