Definition: In the International System of Units, the derived unit of electrical conductance; the electric conductance in a body that has a resistance of one ohm. Symbol: S

Alright class, settle down, let’s take a look! Today we’re tackling ‘siemens,’ a fascinating unit indeed – it’s quite a treat! The dictionary gives us the key, you see, “A derived unit of conductance, electrically free!” Now, think about this: what is electrical flow? It's like water rushing, a current we know. Resistance stands in its way, a stubborn fight, But 'siemens' measures how easily things might... …flow through that resistance, quick and bright! A body with one ohm – it’s quite the sight! So, ‘siemens,’ or ‘S’, is the measure you need, Of how well a material conducts, indeed! Does anyone have any questions? Don't be shy, Let’s explore this concept until we truly fly!