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What exactly is voltage? - Electrical Engineering Stack Exchange The total voltage you get from one out and back, even with a high temperature difference is pretty small By putting many of these out and back combinations together, you can get a useful voltage A single out and back is called a thermocouple, and can be used to sense temperature Many together is a thermocouple generator Yes, those actually
How are current and voltage related to torque and speed of a brushless . . . 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") which is equal to the voltage it receives from battery (disregarding power losses and frictions for simplicity)
voltage - Ground vs. Earth vs. common vs. negative terminal . . . 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 measurements Or in other words, one terminal in a circuit always has many different voltages at the same time, depending on where we place the other meter lead
How much voltage current is dangerous? 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
How to reduce DC voltage using resistors? How would one go about using a 12 V DC power source to power something which needs 4 5 V DC using resistors? Is there a way to determine how much adding a resistor would drop the voltage?
Voltage input for charging NiMH Batteries - Electrical Engineering . . . Actual measured voltage of the 2 series batteries while charging is 2 885 volts, with a current of 240ma If you took 10 batteries at 1 2v in series, 12v total battery voltage, with a trickle charge voltage of 13 8v, that is 15% above the battery voltage
What is forward and reverse voltage when working with diodes? 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 higher than the forward voltage As with forward voltage, a current will flow if the connected voltage exceeds this value This is called a "breakdown"
voltage - Explain in laymans terms Vgs and Vgs (th) of MOSFETs . . . Vgs (th) is the voltage at which the mosfet channel begins to conduct At this voltage, a positive voltage, it creates an electric field, which attract electrons (since our applied voltage is positive, so positive charges on gate) These accumulated electrons near the gate, form a bridge between the source and the drain (which are both n type)