Basic Electrical Special MCQ Part 4
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Basic Electrical Special MCQ Part Four
1.An ideal voltage source has
a. Zero internal resistance
b. Infinite internal resistance
c. A load-dependent voltage
d. A load-dependent current
Answer-A
2.A real voltage source has
a. Zero internal resistance
b. Infinite internal resistance
c. A small internal resistance
d. A large internal resistance
Answer-C
3.If a load resistance is 1k ohm, a stiff voltage source has a resistance of
a. At least 10 ohm
b. Less than 10 ohm
c. More than 100 kohm
d. Less than 100 kohm
Answer-B
Basic Electrical Special MCQ Part 4
4.An ideal current source has
a. Zero internal resistance
b. Infinite internal resistance
c. A load-dependent voltage
d. A load-dependent current
Answer-B
5.A real current source has
a. Zero internal resistance
b. Infinite internal resistance
c. A small internal resistance
d. A large internal resistance
Answer-D
6.If a load resistance is 1 kohm, a stiff current source has a resistance of
a. At least 10 ohm
b. Less than 10 ohm
c. More than 100 kohm
d. Less than 100 kohm
Answer-C
7.The Thevenin voltage is the same as the
a. Shorted-load voltage
b. Open-load voltage
c. Ideal source voltage
d. Norton voltage
Answer-B
Basic Electrical Special MCQ Part 4
8.The Thevenin resistance is equal in value to the
a. Load resistance
b. Half the load resistance
c. Internal resistance of a Norton circuit
d. Open-load resistance
Answer-C
9.To get the Thevenin voltage, you have to
a. Short the load resistor
b. Open the load resistor
c. Short the voltage source
d. Open the voltage source
Answer-B
10.To get the Norton current, you have to
a. Short the load resistor
b. Open the load resistor
c. Short the voltage source
d. Open the current source
Answer-A
Basic Electrical Special MCQ Part 4
11.The Norton current is sometimes called the
a. Shorted-load current
b. Open-load current
c. Thevenin current
d. Thevenin voltage
Answer-A
12.An open resistor has
a. Infinite current through it
b. Zero voltage across it
c. Infinite voltage across it
d. Zero current through it
Answer-D
13.A shorted resistor has
a. Infinite current through it
b. Zero voltage across it
c. Infinite voltage across it
d. Zero current through it
Answer-B
Basic Electrical Special MCQ Part 4
14.An ideal voltage source and an internal resistance is an example of the
a. Ideal approximation
b. Second approximation
c. Higher approximation
d. Exact model
Answer-B
15.Treating a connecting wire as a conductor with zero resistance is an example of the
a. Ideal approximation
b. Second approximation
c. Higher approximation
d. Exact model
Answer-A
16.The voltage out of an ideal voltage source
a. Is zero
b. Is constant
c. Depends on the value of load resistance
d. Depends on the internal resistance
Answer-B
17.The current out of an ideal current source
a. Is zero
b. Is constant
c. Depends on the value of load resistance
d. Depends on the internal resistance
Answer-B
18.Thevenin’s theorem replaces a complicated circuit facing a load by an
a. Ideal voltage source and parallel resistor
b. Ideal current source and parallel resistor
c. Ideal voltage source and series resistor
d. Ideal current source and series resistor
Answer-C
Basic Electrical Special MCQ Part 4
19.Norton’s theorem replaces a complicated circuit facing a load by an
a. Ideal voltage source and parallel resistor
b. Ideal current source and parallel resistor
c. Ideal voltage source and series resistor
d. Ideal current source and series resistor
Answer-B
20.One way to short a device is
a. With a cold-solder joint
b. With a solder bridge
c. By disconnecting it
d. By opening it
Answer-B
Basic Electrical Special MCQ Part 4
