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2 marksCircuit and Components

CSEC Physics · 1988 · Paper 2 · Question 4(c)(ii)

A circuit diagram shows a 4 V battery connected to a resistor Rx, a 10 Ω resistor, a voltmeter and an ammeter incorrectly placed.

Redraw the circuit as it should have been connected to measure the resistance of Rx.

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Other parts of this question

  1. 4(a)State the MAIN differences between the magnetic properties of iron and steel.[2 marks]
  2. 4(b)(i)Identify the components A and B.[2 marks]
  3. 4(b)(ii)Describe clearly the function of EACH of the components X, Y and Z.[6 marks]
  4. 4(c)(i)State what is wrong with the circuit, what the ammeter reading would be, and what the voltmeter reading would be.[5 marks]
  5. 4(c)(iii)If the current through Rx when the circuit is correctly wired is 0.16 A, what is the voltmeter reading?[3 marks]

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