Series Circuits Questions and Answers

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Q11
In a series circuit, the voltage measured across a short will be:
  • A source voltage
  • B infinite voltage
  • C zero volts
  • D the normal voltage drop
Answer: Option C
Q12
A series circuit current:
  • A remains the same through each component
  • B is the same as the individual resistances
  • C is subtracted by each component
  • D varies through each component
Answer: Option A
Q13
If 5 V and 16 V power supplies are connected in series-opposing, what is the total voltage?
  • A 11 V
  • B 16 V
  • C 21 V
  • D 80 V
Answer: Option A
Q14
How will an open resistor affect a series circuit?
  • A Current will flow around the open resistor.
  • B The open resistor will drop 0 V.
  • C Total resistance will decrease.
  • D No current will flow in the circuit.
Answer: Option D
Q15
The voltage drop across a series resistor is proportional to what other value?
  • A total resistance
  • B its own resistance
  • C wattage rating
  • D the amount of time the circuit is on
Answer: Option B
Q16
Resistance in a series circuit will:
  • A control the voltage
  • B double the current
  • C halve the power
  • D oppose current
Answer: Option D
Q17
When a battery is connected to a series circuit, it delivers current based only upon:
  • A primary/secondary difference
  • B total resistance
  • C the polarity connections
  • D average resistance
Answer: Option B
Q18
What determines the total resistance in a series circuit?
  • A the largest resistor
  • B the sum of the resistors
  • C the largest resistor minus the smaller
  • D the smallest resistor
Answer: Option B
Q19
If two resistors have the same voltage drop in a series circuit, it means:
  • A they are connected in parallel
  • B they are of unequal value
  • C the voltage has doubled
  • D they are of equal value
Answer: Option D
Q20
If series resistors dissipate 16 mW, 107 mW, 146 mW, and 243 mW, what is the total power consumed by the circuit?
  • A 128 mW
  • B 269 mW
  • C 512 mW
  • D 1024 mW
Answer: Option C

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