A Wheatstone bridge can be used to determine an unknown current resistance power

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Question
A Wheatstone bridge can be used to determine an unknown
Options
A. current
B. resistance
C. power
D. voltage

Correct Answer

resistance

Series-Parallel Circuits problems

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1.

In the given circuit, what is R_UNK equal to if R_V must be adjusted to 1,232 Ω in order to balance the bridge?
Options
A. 220 Ω
B. 6,899 Ω
C. 1,232 Ω
D. More information is needed in order to find R_UNK.

2. What is the power dissipated by R1, R2, and R3?
Options
A. P1 = 0.13 W, P2 = 0.26 W, P3 = 0.12 W
B. P1 = 0.26 W, P2 = 0.52 W, P3 = 0.23 W
C. P1 = 0.52 W, P2 = 0.92 W, P3 = 0.46 W
D. P1 = 1.04 W, P2 = 1.84 W, P3 = 0.92 W

4. In a series?parallel circuit, individual component power dissipations are calculated using:
Options
A. individual component parameters
B. a percent of the voltage division ratio squared
C. total current squared multiplied by the resistor values
D. a percent of the total power depending on resistor ratios

5. When placed into a circuit, how are electronic components usually connected?
Options
A. positive terminal to positive terminal
B. in parallel
C. as a combination of series and parallel
D. in series

8. The first goal(s) to accomplish in analyzing a complex series?parallel circuit is to:
Options
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

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