Cambridge IGCSE Physics · 4.5 · structured
Transformer in a audio amplifier
Electromagnetic effects · Original GioPhysics question with a detailed, mark-by-mark answer guide.
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- 2
- Answer
- Complete
Question4 marks
An ideal transformer in a audio amplifier has 850 primary turns and 140 secondary turns. The primary voltage is 230 V. Calculate the secondary voltage.
Task interpretation
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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.
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- 4 marks
- Demand
- demanding
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