Electrical Engineering - Circuit Theorems and Conversions

Exercise :: Circuit Theorems and Conversions - General Questions

21. 

Find RN for the circuit given.

A. 34
B. 68
C. 120
D. 154

Answer: Option D

Explanation:

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22. 

Referring to circuit given, if R1 is changed to a 68 resistor, what will be the current through it?

A. 0.16 A
B. 0.24 A
C. 0.2 A
D. 0.04 A

Answer: Option A

Explanation:

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23. 

Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given.

A. 562 mV, 167
B. 5.62 V, 167
C. 5.62 V, 188
D. 562 mV, 188

Answer: Option B

Explanation:

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24. 

Referring to the given circuit, determine VTH and RTH if a 68 resistor is connected in parallel across R2 and R3.

A. 3.3 V, 148
B. 330 mV, 148
C. 3.3 V, 68
D. 330 mV, 68

Answer: Option A

Explanation:

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25. 

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

A. 144 V
B. 14.4 V
C. 7.2 V
D. 72 mV

Answer: Option B

Explanation:

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