Homework activities for OCR A PhysicsH A light emitting diode (LED) and series resistor can be used to indicate the output of a logic gate. H A relay is ... At the side of each one, if possible, draw its circuit symbol. ... The following diagram shows the construction of a simple relay.
|Title||:||Physics Homework for OCR A for Double and Separate Awards|
|Author||:||Newman, Viv, Vernon Smith|
|Publisher||:||Heinemann - 2001|