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 · Instantaneous increase in current with lower input voltage is only possible with power electronics with regulation. For example a TV will adjust the duty cycle of the SMPS to keep all DC …
voltage - Help me understand the relationship between positive ...
Some circuits need a negative voltage, so the positive side of a battery would be "ground". Some circuits need positive and negative voltages, in which case there could be two batteries, one with the …
What is "forward" and "reverse" voltage when working with diodes?
Mar 3, 2011 · What is the difference between "forward" and "reverse" voltages when working with diodes and LEDs? I realize this question is answered elsewhere on the interwebs such as wikipedia, but I …
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 …
Can a current source have a voltage across it?
Jan 6, 2016 · If the voltage across a current source is zero, then it is not delivering or absorbing any power. However, if the voltage across the source is not zero, then it is either sourcing or sinking …
What exactly does "common-mode" mean in the context of op-amps?
Most, or maybe all, topologies could end up outside of common mode voltage ranges at some specific time. What is important is to understand under what conditions will you be outside of the common …
voltage - What is CV & CC in power supplies? - Electrical Engineering ...
Jun 11, 2014 · In many power supplies, there's CV & CC indicators. What does they mean?
Difference between Working Voltage and Isolation Voltage?
Feb 12, 2022 · The isolation voltage is just the rated maximum between two galvanic systems that are supposed to remain isolated. Just think of it as insulation, like what surrounds an insulated wire. That …
Different voltage sources in parallel - Electrical Engineering Stack ...
Apr 11, 2019 · I realize connecting two different voltage sources in parallel is a contradiction (in an ideal circuit). But if I were to connect this in practice and measure the voltage across points A and B, what