What is voltage? It's a stack of invisible membranes which fill the space between charged capacitor plates. Voltage is the pattern of concentric onion-layers which surround any charged object, with the onion-layers running perpendicular to the flux-lines of the electric field. So, 'stacks of voltage-layers' is one way of describing an electric ...

Sep 3, 2012 · A DC motor can be approximated as a circuit with a resistor, and voltage back-emf source. The resistor models the intrinsic resistance of the motor windings. The back-emf models the voltage generated by the moving electric current in the magnetic field (basically a DC electric motor can function as a generator).

Feb 9, 2025 · Voltage of "local ground" The absolute charge on local ground is not actually a thing. Voltage is only ever defined as a difference between two points, so there is no such thing as "ground voltage". What matters is the voltage between your feet and the wires in your house. That voltage is minimized by bonding the neutral wire locally to ground.

Aug 4, 2014 · Voltage and Current. In electricity there are positive charges (usually protons) and negative charges (usually electrons. When one object is positively charged, and another is negatively charged, then there exists an electrostatic field. This is the voltage, or the potential for charge to be able to be moved by the electrostatic field.

Likewise, if the current and voltage are below a certain level, a person can--given enough time--safely absorb an arbitrarily large amount of electrical energy. Further, if voltage is sufficiently low, the amount of current that can flow as a consequence of such voltage will be too low to cause harm. \$\endgroup\$ –

Current and voltage are inseperable. The current is flowing because there is a voltage on the wire, and there is a conductive path from that voltage to a lower voltage. So we can say the data is encoded as voltage pulses or current pulses, it doesn't really matter. Often a high voltage (5 V) indicates a "1" and a low voltage (0 V) indicates a "0".

May 31, 2015 · Most datasheets from famous and respected manufacturers including Vishay and others show a breakdown voltage of 5V and a reverse current of 10 to 50μA. That is not true. I just tested white, red and green LEDs, with a 0-30V power supply and a 1k resistor in series, measuring voltage across the LED, and current in the circuit.

character in net names (Well, I think it was "." chars, I removed them and it fixed the problem). Using "3v3" or "1v8" is an easy way to clearly describe the voltage while restricting net names to exclusively alphanumeric characters. \$\endgroup\$ –

Apr 8, 2013 · The RMS value of a waveform is the DC-equivalent voltage. It means, that if you have a sine wave with an RMS value of 10 volts RMS, in order to deliver the same power via DC voltage, you would need 10 volts DC. Don't confuse the average magnitude with the RMS voltage; V av does not equal V rms. In fact, technically, the average voltage of an ...

Aug 27, 2015 · And the battery voltage will vary with the current charge state - less charge means less cell voltage, but the relationship is not linear (quick drop from completely full, flatter plateau for a while, quick drop again when getting low). Using a charger with a higher voltage can be a problem as that voltage difference has to go somewhere.