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Bookmark or Share- How much voltage/current is "dangerous"? - Electrical Engineering Stack ...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\$ –
- voltage - How does data travel inside a wire? - Electrical Engineering ...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".
- voltage - Why does USB have Vcc=5V and high=3.3V? - Electrical ...The higher voltage allows compensation for voltage drop to the device. If USB was 3.3v then if you had a long cable and poor connectors with 0.5v of drop then the device will only run at 2.8v. If the voltage is 5v the you still have 4.5v to work with and that is enough to run an LDO voltage regulator.
- voltage - What is ground and what does it do? - Electrical Engineering ...However, when there are multiple voltage sources, some of them are "floating". What meaning does the voltage of a floating voltage source have? If I have voltage source with value V between nodes a and b, it means that the voltage difference between a and b will be V volts. A perfect voltage source will generate whatever current is required to ...
- voltage - Is power proportional to V or V^2? - Electrical Engineering ...If the resistance is constant, then increasing the voltage increases the current proportionally, exactly proportionally in the ideal case. Power is not proportional to voltage squared in cases where the load is not a constant resistance. For example, with a rectifier diode it will increase considerably faster than voltage squared.
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