Use of Transformers (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What are the two coils in a transformer called?
What are the two coils in a transformer called?
Primary and secondary coils
What component are both coils of a transformer wrapped around?
What component are both coils of a transformer wrapped around?
An iron core
What type of transformer increases the potential difference?
What type of transformer increases the potential difference?
Step-up transformer
In a step-up transformer, which coil has more turns?
In a step-up transformer, which coil has more turns?
Secondary coil
What are step-up transformers used for in the National Grid?
What are step-up transformers used for in the National Grid?
Electricity transportation via cables
What type of transformer decreases the potential difference?
What type of transformer decreases the potential difference?
Step-down transformer
In a step-down transformer, which coil has fewer turns?
In a step-down transformer, which coil has fewer turns?
Secondary coil
Where are step-down transformers used?
Where are step-down transformers used?
Before electricity reaches homes
What is the efficiency of transformers?
What is the efficiency of transformers?
Nearly 100%
Which equation represents power conservation in transformers?
Which equation represents power conservation in transformers?
A transformer has V, A, V. Find .
A transformer has V, A, V. Find .
20 A