A moving-coil microphone records two notes played by a clarinet. For the second note, the induced current completes more cycles in a fixed time, but the maximum current is unchanged.
What happens to the sound from the first note to the second note?
The pitch increases and the loudness increases.
The pitch is unchanged and the loudness decreases.
The pitch decreases and the loudness is unchanged.
The pitch increases and the loudness is unchanged.
96 exam-style questions on AQA GCSE Physics 7.3 Induced potential, transformers and the National Grid (HT only), covering 7.3.1 Induced potential (HT only), 7.3.2 Uses of the generator effect (HT only), 7.3.3 Microphones (HT only), and 7.3.4 Transformers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.