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4.5.6a Construction and operation of a transformer

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Question 87

Transformers are used in the transmission of electrical energy from power stations to consumers.

Which row in the table correctly describes the effect on voltage of the transformer used at the power station prior to the transmission lines, and the transformer used at the substation prior to delivery to consumers?

At the power stationAt the local substationADecreases the voltageDecreases the voltageBDecreases the voltageIncreases the voltageCIncreases the voltageDecreases the voltageDIncreases the voltageIncreases the voltage \begin{array}{|c|c|c|} \hline & \text{At the power station} & \text{At the local substation} \\ \hline \text{A} & \text{Decreases the voltage} & \text{Decreases the voltage} \\ \hline \text{B} & \text{Decreases the voltage} & \text{Increases the voltage} \\ \hline \text{C} & \text{Increases the voltage} & \text{Decreases the voltage} \\ \hline \text{D} & \text{Increases the voltage} & \text{Increases the voltage} \\ \hline \end{array} ABCD​At the power stationDecreases the voltageDecreases the voltageIncreases the voltageIncreases the voltage​At the local substationDecreases the voltageIncreases the voltageDecreases the voltageIncreases the voltage​​
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

4.5.6a Construction and operation of a transformer Questions

  1. IGCSE
  2. /Physics
  3. /4.5.6a Construction and operation of a transformer

136 exam-style questions on CIE IGCSE Physics 4.5.6a Construction and operation of a transformer. Each one has a worked solution and a mark scheme showing where the marks go.

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