The table shows successive voltage readings taken at equal time intervals over one complete rotation of two simple generators.
| Position | Generator X in V\mathrm{V}V | Generator Y in V\mathrm{V}V |
|---|---|---|
| Start | 0 | 0 |
| Quarter-turn | +5 | +5 |
| Half-turn | 0 | 0 |
| Three-quarter-turn | -5 | +5 |
| Full turn | 0 | 0 |
Which pair of connections is consistent with these results?
X uses a split-ring commutator; Y uses slip rings.
X uses slip rings; Y uses slip rings.
X uses a split-ring commutator; Y uses a split-ring commutator.
X uses slip rings; Y uses a split-ring commutator.
92 exam-style questions on Edexcel GCSE Physics 13.1 Inducing a current, covering 13.1.1 Producing an electric current by induction, 13.1.2 Factors affecting the induced potential difference, 13.1.3 Alternators and dynamos, and 13.1.4 Microphones and loudspeakers. Each one has a worked solution and a mark scheme showing where the marks go.