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4.5.6a Construction and operation of a transformer

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Question 68

A transformer has $NpN_{\text{p}}$ turns in the primary coil and $NsN_{\text{s}}$ turns in the secondary coil.

Which row gives the values of $NpN_{\text{p}}$ and $NsN_{\text{s}}$ for a transformer that steps up a voltage of 240 V to 9600 V?

$Np=300N_{\text{p}} = 300$ , $000N_{\text{s}} = 12\,000$

$Np=300N_{\text{p}} = 300$ , $000N_{\text{s}} = 120\,000$

$000N_{\text{p}} = 12\,000$ , $Ns=300N_{\text{s}} = 300$

$000N_{\text{p}} = 120\,000$ , $Ns=300N_{\text{s}} = 300$

Markscheme

4.5.6a Construction and operation of a transformer Questions

IGCSE
Physics
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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