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 k resistor is open. B.
The 4.7 k resistor is open. C.
The 2.2 k resistor is open. D.
The 3.3 k resistor is open.

Answer: Option B

Explanation:

22.

How much current is flowing through R_{1} in the given circuit?

Answer: Option C

Explanation:

23.
If R_{1} is in series with parallel connected to R_{2} and R_{3} , what happens to total current if R_{2} opens?

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

Answer: Option B

Explanation:

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:

25.
If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when R_{1} is in series with a parallel circuit consisting of R_{2} and R_{3} ?

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

Answer: Option C

Explanation: