An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave.
Elasticity of supply measures how the amount of a good changes when the producer hires more employees. Elasticity of supply measures how the amount of a good changes when the producer uses new materials. Elasticity of demand measures how the amount of a good changes when its price goes up or down. Elasticity of demand measures how the amount of a good changes when its distribution expands.
Elasticity of supply is measured as the ratio of proportionate change in the quantity supplied to the proportionate change in price. High elasticity indicates the supply is sensitive to changes in prices, low elasticity indicates little sensitivity to price changes, and no elasticity means no relationship with price.