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4.3 Electric circuits

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Question 16

An electrical cell is labeled with 2.0 V.

a.

State what the 2.0 V indicates about the cell.

[1]
b.

Four cells identical to this cell are connected in series to make an 8.0 V battery. This battery is connected in series with a 160 Ω resistor. Calculate the current in this circuit.

[2]
c.

A second 160 Ω resistor is now connected in parallel with the first 160 Ω resistor. Calculate the total combined resistance of the two parallel resistors.

[2]
d.

State: 1. the potential difference across the second 160 Ω resistor, 2. the current in the second 160 Ω resistor.

[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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