GCSEScienceOCRCombined Science A (Gateway)PhysicsExam QuestionsElectricitySeries & Parallel Circuits

Series & Parallel Circuits (OCR GCSE Combined Science A (Gateway): Physics): Exam Questions

Exam code: J250

53 mins15 questions

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Series & Parallel Circuits

1
1 mark

What is the current at point P in the circuit?

q2-paper3-june2018-ocr-gcse-physics

  • 0.5 A

  • 7.5 A

  • 15.0 A

  • 20.5 A

Choose your answer

2
1 mark

Which voltage is the maximum voltage made when four 1.5 V cells are connected in series?

  • 0 V

  • 1.5 V

  • 3.0 V

  • 6.0 V

Choose your answer

3
1 mark

This is a circuit.

q6-paper1-june2018-ocr-gcse-physics

Which letter A, B, C or D shows the part of the circuit that carries a current of 2A?

    Choose your answer

    4
    1 mark

    A student has 3 identical resistors. She arranges them in four different ways.

    q7-paper1-june2018-ocr-gcse-physics

    Which arrangement has the most resistance?

      Choose your answer

      5
      1 mark

      The table shows the current and potential difference for four different lamps.

      Which lamp has the highest power?

      Use the equation: power = potential difference Ɨ current

      Ā 

      Current (A)

      Potential difference (V)

      A

      2

      5

      B

      3

      4

      C

      4

      2

      D

      5

      1

        Choose your answer

        6
        1 mark

        Which item uses the most power?

        Use the equation: power = potential difference Ɨ current

        Ā 

        Item

        Current (A)

        Potential difference (V)

        A

        Calculator

        0.1

        3

        B

        Mobile Phone

        1.0

        5

        C

        Radio

        0.5

        12

        D

        Torch

        1.2

        6

          Choose your answer

          7
          1 mark

          The current in a 12 Ī© resistor is 9.0 A.

          How much power is dissipated?

          • 108 W

          • 972 W

          • 1 296 W

          • 11 664 W

          Choose your answer

          8
          1 mark

          Which of the following is correct for series and parallel circuits?

          Series

          Parallel

          A

          Current is the same at all positions

          Potential difference split between branches

          B

          Potential difference is split between components

          Current is split between branches

          C

          Current is the same at all positions

          Total resistance is the sum of the individual resistors

          D

          Potential difference is the same at all positions

          Adding resistors increases the total resistance of the circuit

            Choose your answer

            9
            1 mark

            Calculate the power dissipated by resistor R.

            file-000-52

            • 3 W

            • 12 W

            • 15 W

            • 30 W

            Choose your answer

            10
            1 mark

            All the lamps in the diagrams above are identical. Each one is rated as ā€˜10 W, 230 Vā€™.

            In which of the diagrams are all the lamps working at their normal brightness?

            Four electrical circuit diagrams labeled A to D, each with lamp connected differently to a 230V power source. Circuit A is a parallel circuit with a lamp before the junction, a lamp in each branch, and a lamp after the junction. Circuit B is a parallel circuit with no bulbs before or after the junction, and two lamps in each branch. Circuit C is a series circuit containing four lamps. Circuit D is a parallel circuit with four branches, each of which has one lamp.

              Choose your answer