Electronics - Series-Parallel Circuits

Exercise :: Series-Parallel Circuits - General Questions

21. 

Which circuit fault do the meter readings in the given figure indicate?

A. The 1 komega.gif resistor is open.
B. The 4.7 komega.gif resistor is open.
C. The 2.2 komega.gif resistor is open.
D. The 3.3 komega.gif resistor is open.

Answer: Option B

Explanation:

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22. 

How much current is flowing through R1 in the given circuit?

A. 0.3 A
B. 0.15 A
C. 0.5 A
D. 0.68 A

Answer: Option C

Explanation:

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23. 

If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?

A. increases
B. decreases
C. remains the same
D. cannot tell

Answer: Option B

Explanation:

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24. 

The first goal(s) to accomplish in analyzing a complex series–parallel circuit is to:

A. equate all parallel components
B. equate all series components
C. solve for all the voltage drops
D. solve for the total current and resistance

Answer: Option D

Explanation:

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25. 

If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when R1 is in series with a parallel circuit consisting of R2 and R3?

A. 10 ohms
B. 20 ohms
C. 45 ohms
D. 90 ohms

Answer: Option C

Explanation:

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