Series Circuits MCQ

Test your knowledge with important Series Circuits MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Series Circuits MCQs at Bissoy

• A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is
  ক

  0 V

  খ

  1.2 V

  গ

  6 V

  ঘ

  0.6 V
• The voltage at one point in a circuit is always measured relative to another point.
  ক

  True

  খ

  False
• A series circuit has a 24 V source and a total resistance of 120 Ω. The current through each resistor is
  ক

  24 mA

  খ

  200 mA

  গ

  120 mA

  ঘ

  20 mA
• Two 6 V batteries are connected series aiding across two 1.2 kΩ resistors in series. Current through each resistor is
  ক

  5 mA

  খ

  10 mA

  গ

  0 A

  ঘ

  2.5 mA
• The following resistors (one each) are connected in a series circuit: 470 Ω, 680 Ω, 1 kΩ, and 1.2 kΩ. The voltage source is 20 V. Current through the 680 Ω resistor is approximately
  ক

  60 mA

  খ

  30 mA

  গ

  6 mA

  ঘ

  300 mA
• If a 6 V and a 9 V source are connected series aiding, the total voltage is
  ক

  6 V

  খ

  9 V

  গ

  3 V

  ঘ

  15 V
• If a 24 V and a 6 V battery are series opposing, the total voltage is
  ক

  30 V

  খ

  24 V

  গ

  18 V

  ঘ

  0 V
• When a fourth resistor is connected in series with three resistors, the total resistance
  ক

  Increases by one-fourth

  খ

  Increases

  গ

  Decreases

  ঘ

  Remains the same
• The total resistance of eight 5.6 kΩ resistors in series is
  ক

  8 Ω

  খ

  5,600 Ω

  গ

  4,480 Ω

  ঘ

  44,800 Ω
• The total resistance of a circuit is 680 Ω. The percentage of the total voltage appearing across a 47 Ω resistor that makes up part of the total series resistance is
  ক

  68 %

  খ

  47 %

  গ

  69 %

  ঘ

  6.91 %
• A series circuit acts as a voltage divider.
  ক

  True

  খ

  False
• A series circuit acts as a current divider.
  ক

  True

  খ

  False
• Which of the following series combinations dissipates the most power when connected across a 120 V source?
  ক

  One 220 Ω resistor

  খ

  Two 220 Ω resistors

  গ

  Three 220 Ω resistors

  ঘ

  Four 220 Ω resistors
• In a series circuit, the individual powers are additive.
  ক

  True

  খ

  False
• Two 1.5 V cells are connected series opposing across two 100 Ω resistors in series. Total current flow is
  ক

  15 mA

  খ

  5 mA

  গ

  2 mA

  ঘ

  0 A
• A certain series circuit consists of a $$\frac{1}{8}$$ W resistor, a $$\frac{1}{4}$$ W resistor and a $$\frac{1}{2}$$ W resistor. The total resistance is 1200 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is
  ক

  27 mA

  খ

  2.7 mA

  গ

  19 mA

  ঘ

  190 mA
• The term 'series opposing' means that sources are in series with opposite polarities.
  ক

  True

  খ

  False
• Three 680 Ω resistors are connected in series with a 470 V source. Current in the circuit is
  ক

  69 mA

  খ

  230 mA

  গ

  23 mA

  ঘ

  690 mA
• When one of three series resistors is removed from a circuit and the circuit is reconnected, the current
  ক

  Increases

  খ

  Increases by one-third

  গ

  Decreases by one-third

  ঘ

  Decreases by the amount of current through the removed resistor
• The sum of all the voltage drops around a single closed loop in a circuit is zero.
  ক

  True

  খ

  False
• A series circuit consists of a 4.7 kΩ, a 12 kΩ, and a 2.2 kΩ resistor. The resistor that has the most voltage drop is
  ক

  The 12 kΩ

  খ

  The 2.2 kΩ

  গ

  The 4.7 kΩ

  ঘ

  Impossible to determine from the given information
• To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed
  ক

  Between the second and third resistors

  খ

  At the negative terminal of the source

  গ

  Between the third and fourth resistors

  ঘ

  At any point in the circuit
• A short in a series circuit prevents current.
  ক

  True

  খ

  False
• If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.
  ক

  True

  খ

  False
• A series circuit consists of three resistors. Two resistors are 1.2 kΩ each. The total resistance is 12 kΩ. The value of the third resistor is
  ক

  9,600 Ω

  খ

  960 Ω

  গ

  1.2 kΩ

  ঘ

  Cannot be determined
• There are five resistors in a given series circuit and each resistor has 6 V dropped across it. The source voltage is
  ক

  6 V

  খ

  Depends on the current flow

  গ

  Depends on the resistor values

  ঘ

  30 V
• The total resistance of a series circuit is equal to the difference between the largest and smallest value resistors.
  ক

  True

  খ

  False
• Five resistors are connected in a series and there is a current of 3 A into the first resistor. The amount of current into the second resistor is
  ক

  3 A

  খ

  1 A

  গ

  4 A

  ঘ

  0.3 A
• The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates
  ক

  12 W

  খ

  48 W

  গ

  3 W

  ঘ

  8 W
• Two resistors are in series: a 5.6 kΩ resistor and a 4.7 kΩ resistor. The voltage drop across the 5.6 kΩ resistor is 10 V. The voltage across the 4.7 kΩ resistor is
  ক

  8.39 V

  খ

  10 V

  গ

  2.32 V

  ঘ

  0 V