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4.3 Electric circuits

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Question 31

A student connects a battery, a switch, and two resistors in a circuit such that there is only one continuous path for the electric current to flow.

a.

Give the name for this type of circuit connection.

[1]
b.

The two resistors have resistances of 12.0 Ω12.0\ \Omega12.0 Ω and 18.0 Ω18.0\ \Omega18.0 Ω respectively. Calculate the combined total resistance of these two resistors.

[2]
c.

The battery provides a potential difference of 9.0 V9.0\text{ V}9.0 V across the series combination. Calculate the current flowing through each resistor when the switch is closed.

[2]
Markscheme

4.3 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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