What is voltage ? This page offers an easy-to-understand explanation of how voltage differs from current, the units in which it is measured, and other information. Overview Before you start using electronic devices, you need to develop a good understanding of current, resistance, voltage , and related topics. If you’re like most people, you're familiar with the words but lack a detailed understanding of the underlying concepts. This page provides an easy-to-understand introduction that ... Learn the fundamentals of voltage , current, and resistance in electronics. Ohm's Law, practical applications, and key concepts with easy-to-follow explanations. Voltage is the pressure that pushes electrons through a circuit and does work. Learn the difference between AC and DC voltage , how to measure voltage with a multimeter, and what is potential difference. A common use of the term " voltage " is in describing the voltage dropped across an electrical device (such as a resistor). The voltage drop across the device can be understood as the difference between measurements at each terminal of the device with respect to a common reference point (or ground).
