Skip to content

Course home

Sign up

13.2 Transformers and the National Grid

EasyMediumHard
123456789101112131415
Question 12

The primary coil of an electric toothbrush charger transformer is connected to a 240 V mains supply.

The potential difference across the secondary coil is 12 V.

The primary coil has 800 turns.

Calculate the number of turns on the secondary coil.

[2]
Markscheme

13.2 Transformers and the National Grid Questions

  1. GCSE
  2. /Physics
  3. /13.2 Transformers and the National Grid

28 exam-style questions on Edexcel GCSE Physics 13.2 Transformers and the National Grid, covering 13.2.1 Transformers and induction, 13.2.2 The transformer turns-ratio equation, 13.2.3 The National Grid, 13.2.4 The transformer power equation, and 13.2.5 Advantages of high-voltage transmission. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank