Series Parallel Circuits(Electrical Engineering Questions ) Questions and Answers

Question 1. When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?
  1.    twice the source voltage
  2.    half the source voltage
  3.    zero volts
  4.    the same as the source voltage
Explanation:-
Answer: Option C. -> zero volts
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. The positive (+) and negative (-) ends of the battery are called ___________?
  1.    circuit diagram
  2.    battery knobs
  3.    battery terminals
  4.    battery sides
Explanation:-
Answer: Option C. -> battery terminals
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. The first goal to accomplish in analyzing a complex series-parallel circuit is to____________?
  1.    solve for all the voltage drops
  2.    solve for the total current and resistance
  3.    equate all series components
  4.    equate all parallel components
Explanation:-
Answer: Option B. -> solve for the total current and resistance
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. In a series–parallel circuit, individual component power dissipation are calculated using_____________?
  1.    individual component parameters
  2.    a percent of the total power depending on resistor ratios
  3.    total current squared multiplied by the resistor values
  4.    a percent of the voltage division ratio squared
Explanation:-
Answer: Option A. -> individual component parameters
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?
  1.    cannot tell
  2.    remains the same
  3.    increases
  4.    decreases
Explanation:-
Answer: Option D. -> decreases
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?
  1.    200 mA
  2.    400 mA
  3.    600 mA
  4.    800 mA
Explanation:-
Answer: Option B. -> 400 mA
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. A Wheatstone bridge can be used to determine an unknown_____________?
  1.    current
  2.    voltage
  3.    resistance
  4.    power
Explanation:-
Answer: Option C. -> resistance
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2‘s voltage will:___________?
  1.    increase
  2.    remain the same
  3.    decrease
  4.    cannot tell
Explanation:-
Answer: Option C. -> decrease
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. The current flowing through an unloaded voltage divider is called the____________?
  1.    bleeder current
  2.    load current
  3.    resistor current
  4.    voltage current
Explanation:-
Answer: Option A. -> bleeder current
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. A device able to supply electrical energy is a __________?
  1.    nonconductor
  2.    battery
  3.    conductor
  4.    microwave
Explanation:-
Answer: Option B. -> battery
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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