This volume covers the 2006 Gateway Science specification for all exam boards - AQA, Edexcel and OCR. The content emphasises the shift from fact learning to investigating and understanding how science works, making it more exciting, up-to-date and relevant to everyday life.They are used in temperature-sensitive circuits, e.g. fire alarms and thermostats. Simple fire alarm. If the thermistor becomes warm resistance falls. Current now flows around the circuit and the buzzer sounds. thermistor] O What is an electricanbsp;...
Title | : | Science Higher |
Author | : | Brian Arnold |
Publisher | : | Letts and Lonsdale - 2006 |
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