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- 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 \$\endgroup\$ –
- What exactly does common-mode mean in the context of op-amps?
But the average voltage of the two is still 5 V, and more importantly, we don't care about that The signal of interest is the difference between the two sides, i e 5 025 V - 4 975 V = 50 mV So we use a differential amplifier to take the difference (and probably multiply it by some gain factor)
- voltage - What is the difference between Vrms and Vm? - Electrical . . .
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
- voltage - Ground vs. Earth vs. common vs. negative terminal . . .
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
- What is the difference between reverse stand off voltage and . . .
V RWM is the Reverse Working Voltage, the voltage a curcuit works with (e g 3 3 V or 5 V for microcontrollers) At this voltage, the TVS diode should have no effect on the circuit V BR is the Breakdown Voltage at which it starts conducting higher currents This voltage should be higher than the maximum voltage which the power supply would
- 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)
- How to calculate voltage drop over and power loss in wires
Now, we want to know what the voltage drop over one piece of wire is using \$\text{V}=\text{I}\cdot{}\text{R}\$: \$\text{V}=0 01961\cdot2 5=0 049025V=49 025\text{mV}\$ We can also calculate the voltage over \$\text{R}_{\text{load}}\$ in the same way: \$\text{V}=0 01961\cdot250=4 9025\text{V}\$ Anticipating on voltage loss
- voltage - Source Transformation of dependent sources - Electrical . . .
so we have now proved the other way round transformation, from voltage to current generator, is always possible too Conclusion Recapping Voltage and current controlled sources can be transformed each other To do so it might be necessary to do some math on control variable, but this is going to be always possible
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