Charge, Current, Voltage, and Power

Electronic sensors detect changes in the environment caused by stimuli, therefore altering resistance and changing the current, which is processed to give a reading. 

Sensors can range from thermistors to electron microscopes.

Ants in my Eyes Johnson can detect ants on his eyes... I think...

CURRENT IS THE RATE OF FLOW OF CHARGED PARTICLES! These are most often electrons, and it is defined as the equation...

A COLOUMB IS A UNIT OF CHARGE, 1 COULOMB IS THE AMOUNT OF CHARGE WHICH PASSES A POINT IN ONE SECOND WHEN CURRENT IS ONE AMP.

Current can be measured using an ammeter. 

Conventional current flows from…