Electrical Quantities (Cambridge (CIE) IGCSE Physics)

Exam Questions

3 hours42 questions
11 mark

What is the unit of electromotive force?

  • Joule

  • Volt

  • Ampere

  • Watt

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21 mark

The diagram shows two light, silver-coated balls labelled X and Y hanging from threads near to each other.

4-2-2-e-charged-balls

Which line identifies the possible charges on X and Y?

 

X

Y

A

neutral

neutral

B

negative

negative

C

negative

positive

D

positive

negative

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    31 mark

    Extended tier only

    What is the correct unit of charge?

    • Ampere

    • Coulomb

    • Newton

    • Volt

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    41 mark

    Which pair of quantities have the same units?

    • Current and potential difference

    • Current and resistance

    • Electromotive force and potential difference

    • Electromotive force and resistance

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    51 mark

    Which line correctly states the equation for electrical energy?

    • E space equals space I R

    • E space equals space m v squared

    • E space equals space rho g h

    • E space equals space V I t

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    11 mark

    A PVC (plastic) rod is rubbed with a nylon cloth. This process causes electrons to be transferred between the rod and the cloth, causing both objects to become charged.

    Which row gives the correct nature of the charges on both the cloth and the rod, and the effect the objects have on each other after becoming charged?

     

    Charges on rod and cloth

    Effect

    A

    the same

    repel

    B

    the same

    attract

    C

    opposite

    repel

    D

    opposite

    attract

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      21 mark

      A student wants to charge up some rods by rubbing them with a cloth made from a suitable material.

      He has a number of rods to choose from: a copper rod, a PVC rod, an aluminium rod and a glass rod.

      Which two of the rods would hold a charge when rubbed with an appropriate cloth?

      • Aluminium and PVC

      • Glass and copper

      • Aluminium and copper

      • Glass and PVC

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      31 mark

      Extended tier only

      A student considers how changing the diameter and length of a wire affects its resistance.

      Which row shows the changes that could be made to the length and diameter of the wire to decrease its resistance?

       

      Change to length

      Change to diameter

      A

      increase

      increase

      B

      increase

      decrease

      C

      decrease

      increase

      D

      decrease

      decrease

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        41 mark

        A student rubs an acetate rod with a cloth, giving it a negative charge. She then holds it near an earthed, conducting sphere as shown in the diagrams below.

        Which diagram shows the correct distribution of charges on the conducting sphere?

        q3-medium-mcq-4-2-electrical-quantitiescie-igcse-physics

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          51 mark

          Extended tier only

          A student has four copper wires, of different dimensions.

          Which of the following wires has the largest resistance?

           

          Length of wire / cm

          Diameter of wire / mm

          A

          100

          0.2

          B

          300

          0.1

          C

          50

          0.4

          D

          30

          0.5

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            11 mark

            Extended tier only

            What is the definition of an electric field?

            • A region in space in which a mass experiences a force due to the Earth’s mass.

            • A region in space through which electromagnetic radiation is passing.

            • A region in space in which a compass needle experiences a force.

            • A region in space in which an electric charge experiences a force.

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            21 mark

            Extended tier only

            Four current-voltage graphs are given below.

            q2-hard-mcq-4-2-electrical-quantitiescie-igcse-physics

            Which graph shows an ohmic resistor and which shows a filament lamp?

             

            Filament lamp

            Ohmic resistor

            A

            Q

            S

            B

            R

            Q

            C

            P

            Q

            D

            Q

            R

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              31 mark

              Extended tier only

              Which diagram shows the correct electric field pattern between two oppositely charged parallel plates?

              q3-hard-mcq-4-2-electrical-quantitiescie-igcse-physics

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                41 mark

                Extended tier only

                Which row in the table gives the correct units for charge and e.m.f.?

                 

                Charge

                EMF

                A

                Q

                E

                B

                C

                V

                C

                A

                J

                D

                J

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                  51 mark

                  Extended tier only

                  A student sets up a circuit as shown in the diagram.

                  q5-hard-mcq-4-2-electrical-quantitiescie-igcse-physics

                  A charge of 4.9 C flows through the resistor in 0.7 s.

                  Which row shows the correct current, direction of electron flow and direction of conventional current through the resistor?

                   

                  current / A

                  direction of electron flow

                  direction of conventional current

                  A

                  7.00

                  Left to right

                  Right to left

                  B

                  3.43

                  Left to right

                  Right to left

                  C

                  7.00

                  Right to left

                  Right to left

                  D

                  3.43

                  Right to left

                  Right to left

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                    61 mark

                    A student connects a 6 V power supply to a 3 Ω resistor. The resistor is left connected to the power supply for 1 minute.

                    How much power is dissipated by the resistor?

                    • 2 W

                    • 12 W

                    • 720 J

                    • 18 W

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                    71 mark

                    A 3.0 Ω resistor is connected to a 15 V power supply as shown in the diagram. The ammeter reads 5 A throughout the experiment.

                    q7-hard-mcq-4-2-electrical-quantitiescie-igcse-physics

                    How much energy is dissipated as heat by the resistor in 2 minutes?

                    • 9.0 kJ

                    • 150 J

                    • 600 J

                    • 5.0 kJ

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                    81 mark

                    A 2.0 Ω resistor is connected to meter X and meter Y as shown in the diagram.

                    q8-hard-mcq-4-2-electrical-quantitiescie-igcse-physics

                    Which row in the table shows possible values for the two meters?

                     

                    X

                    Y

                    A

                    4.0

                    8.0

                    B

                    2.0

                    2.0

                    C

                    4.0

                    2.0

                    D

                    1.0

                    1.0

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                      91 mark

                      A student wants to measure the power dissipated by a 10 kΩ resistor.

                      What equipment should the student use to determine the power dissipated?

                      • A voltmeter and an ammeter

                      • A voltmeter, an ammeter and a stopwatch

                      • A voltmeter only

                      • An ammeter and a stopwatch

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