A. Transistor
B. Crystal Oscillator
C. Diode
D. Balance Wheel
In an electronic watch, a component corresponding to the pendulum of a pendulum clock is called a crystal oscillator. The process by which the smell of cooking spreads to all the rooms in a house is called diffusion. Diffusion is the net movement of anything, i.e. atoms, ions, molecules, energy, from a generally high concentration area to a low concentration area.