Quiz  /  D.C. Generators Class 9 MCQ Questions With Answers

  • 1. 
    How can one volt also be expressed?

  • one coulomb per ampere
  • one coulomb per joule
  • one joule per ampere
  • one joule per coulomb

  • 2. 
    The diagram shows a battery of three 1.5 V cells. What is an advantage of this arrangement of cells?

  • The battery can supply a current for a longer time than a single 1.5 V cell.
  • The battery can supply any e.m.f. between 0 V and 4.5 V.
  • The battery supplies more energy to each coulomb of charge than a single 1.5 V cell.
  • The e.m.f. of the battery is 4.5 V.

  • 3. 
    The circuit shown is switched on for 1.0 minute. How much charge passes through the 3.0 Ω resistor?

  • 2.0 C
  • 12 C
  • 120 C
  • 720 C

  • 4. 
    The readings of an ammeter and a voltmeter are used to calculate the resistance of resistor R. Which circuit shows the ammeter and voltmeter in the correct positions?

  • A
  • B
  • C
  • D

  • 5. 
    A 6.0 V battery is connected to a network containing five identical resistors. A voltmeter has one lead connected to point K as shown. At which point should lead L be connected so that the voltmeter reads 3.0 V?

  • A
  • B
  • C
  • D

  • 6. 
    A charge of 45 C flows through an electric appliance in 3.0 minutes. What is the average current in the appliance?

  • 0.25 A
  • 4.0 A
  • 15 A
  • 135 A
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