What does a voltage or current source actually output?
Mar 17, 2024 · Voltage is the cause, current is the effect. So both sources provide a voltage on their terminals. In the voltage source the voltage on the output terminals has, or is intended to have, a …
How are current and voltage related to torque and speed of a …
Sep 3, 2012 · Voltage instead "regulates" how fast a motor can run: the maximum speed a motor can reach is the speed at which the motor generates a voltage (named "Counter-electromotive force") …
Why did current increase when voltage decreased?
Jan 6, 2024 · Meanwhile the power equation, P = VI P = V I means that the power supply's input current is I = P V I = P V so as voltage decreases current must increase to provide the required output …
Why does a resistor reduce voltage if V=IR? [duplicate]
According to Ohm's law, resistance varies directly with voltage You should read this the other way. Voltage varies directly with current. "R" is the constant of proportionality telling how much it varies. If …
What is "forward" and "reverse" voltage when working with diodes?
Mar 3, 2011 · The reverse voltage is the voltage drop across the diode if the voltage at the cathode is more positive than the voltage at the anode (if you connect + to the cathode). This is usually much …
voltage - Is power proportional to V or V^2? - Electrical Engineering ...
Jan 20, 2021 · If a variable voltage source is connected to a resistor, then the power is proportional to V2 V 2. If a variable voltage source is connected to a constant-current load (something which admits …
voltage - "Ground" vs. "Earth" vs. common vs. negative terminal ...
Aug 4, 2014 · Voltage has exactly the same problem: one terminal can only "have a voltage" when compared to another terminal. Voltage acts like distance: voltage and distance are double-ended …
Voltage drop across a single resistor and across two resistors
Jul 20, 2020 · An intuitive way to look at is that all the voltage is dropped across two resistors, and since the resistors are the same, the voltage drop across each will be the same, each taking half.
design - What is the recommended fully-charged voltage for NiMH AA ...
The voltage when full doesn't matter much. It drops as soon as you start using the cell. Full detection is done (as you have found) with negative voltage change when charging with a constant current. Safe …
RMS value calculation of 3 phase line voltages for power calculations
Apr 27, 2021 · For any three-phase load, the total power is sum of the power consumed per phase. For a balanced load, this simplifies to: In a wye connected load, line current equals phase current , but …