Practice Circuit Theorems And Conversions Multiple Choice Questions with Answers Quiz-2

Q.1.

A 12 mA current source has an internal resistance, RS, of 1.2 kΩ. The equivalent voltage source is

144 V
14.4 V
7.2 V
72 mV

Q.2.

A 470 Ω RL is connected across a voltage source, VS, of 120 V. The source's internal resistance, RS, is 12 Ω. What is the output voltage across the load?

120 V
0 V
117 V
12 V

Q.3.

Find the Thevenin equivalent (V_TH and RTH) between terminals A and B of the circuit given.
Circuit Theorems and Conversions mcq question image

562 mV, 167 Ω
5.62 V, 167 Ω
5.62 V, 188 Ω
562 mV, 188 Ω

Q.4.

Find the Norton circuit, that is, IIN and RN, for the circuit given below.
Circuit Theorems and Conversions mcq question image

478 mA, 12.8 Ω
750 mA, 12.8 Ω
478 mA, 6.8 Ω
750 mA, 6.8 Ω

Q.5.

Find the Thevenin equivalent (V_TH and RTH) between terminals A and B of the circuit given below.
Circuit Theorems and Conversions mcq question image

4.16 V, 120 Ω
41.6 V, 120 Ω
4.16 V, 70 Ω
41.67 V, 70 Ω

Q.6.

Referring to circuit given, if R1 is changed to a 68 Ω resistor, what will be the current through it?
Circuit Theorems and Conversions mcq question image

0.16 A
0.24 A
0.2 A
0.04 A

Q.7.

Find the current through R2 of the given circuit.
Circuit Theorems and Conversions mcq question image

30.7 mA
104 mA
74 mA
134 mA

Q.8.

Find the current through R1 in the given circuit.
Circuit Theorems and Conversions mcq question image

0.16 A
0.24 A
0.2 A
0.04 A

Q.9.

Referring to the given circuit, determine V_TH and RTH if a 68 Ω resistor is connected in parallel across R2 and R3.
Circuit Theorems and Conversions mcq question image

3.3 V, 148 Ω
330 mV, 148 Ω
3.3 V, 68 Ω
330 mV, 68 Ω

Q.10.

Referring to the given circuit, the voltage and current for the load resistor, RL, is
Circuit Theorems and Conversions mcq question image

450 mV, 4.5 mA
4.50 V, 45 mA
4.50 V, 4.5 mA
450 mV, 45 mA

Q.11.

You cannot convert a voltage source to an equivalent current source, or vice versa.

True
False

Q.12.

An ideal current source has zero internal resistance.

True
False

Q.13.

The Thevenin equivalent voltage (V_TH) is the short-circuit voltage between two terminals in a circuit.

True
False

Q.14.

Transistors act basically as voltage sources.

True
False

Q.15.

Conversions between delta-type and wye-type circuit arrangements are useful in certain specialized applications.

True
False

Q.16.

Find the total current through R₃ in the given circuit.

7.3 mA
5.5 mA
12.8 mA
1.8 mA

Q.17.

A 2 R_L is connected across a voltage source, V_S, ofV. The source's internal resistance is. What is the output voltage across the load?

8.5 V
85 V
0 V
110 V

Q.18.

A 2 R_L is connected across a voltage source, V_S, ofV. The source's internal resistance is. What is the output voltage across the load?

8.5 V
85 V
0 V
110 V

Q.19.

Find the current through R₂ of the given circuit.

30.7 mA
104 mA
74 mA
134 mA

Q.20.

A 2 R_L is connected across a voltage source, V_S, ofV. The source's internal resistance is. What is the output voltage across the load?

8.5 V
85 V
0 V
110 V

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