Transformers and the national grid

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Question 8
Easy

In a transformer used for a low-voltage chime system:

  • the primary voltage is 240 V
  • the primary current is 0.030 A
  • the secondary voltage is 12.0 V

Calculate the secondary current. Use the equation:

Is=Vp×IpVs I_s = \frac{V_p \times I_p}{V_s} Is​=Vs​Vp​×Ip​​
[2]

Transformers and the national grid Questions

  1. GCSE
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