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Cambridge IGCSE Physics · 4.5 · structured

Transformer in a substation

Electromagnetic effects · Original GioPhysics question with a detailed, mark-by-mark answer guide.

Demand
demanding
Marks
4
Topics
2
Answer
Complete
Question4 marks

An ideal transformer in a substation has 800 primary turns and 130 secondary turns. The primary voltage is 230 V. Calculate the secondary voltage.

Task interpretation

What a complete response should do

Build a visible chain from the information given to the quantity or statement requested.

Split the problem into linked stages and state why each relationship applies.

Response type
structured
Allocation
4 marks
Demand
demanding
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Use your answer and the marking steps—not confidence alone—to choose.