WebApr 14, 2012 · 8. Basically the current rating is a maximum value. This means that a 15.6 V/8 A can replace a 15.6 V/5 A powersupply. What's important in a power supply for a laptop is that the voltage output is the same and the current are the same or above the original power supply. WebMay 1, 2000 · SIDEBAR 1: Rules of Thumb for High and Low Voltage. Small motors tend to be more sensitive to overvoltage and saturation than do large motors. Single-phase motors tend to be more sensitive to overvoltage than do 3-phase motors. U-frame motors are less sensitive to overvoltage than are T-frames.
Why does increasing voltage increase current? [duplicate]
WebJul 26, 2015 · For a fixed amount of power if you increase the voltage then the current is reduced. To deliver 100W you can either have 50V and 2I or 25V and 4I. ...but looking at Ohms law, V =IR, if we want to have a higher voltage and lower current the resistance has to go up, e.g 50v = 2I x 25R or 25V = 4I x 6.25R. WebApr 4, 2024 · The difference in electric potential energy (per charge) between two points is what we have given the name voltage. Thus, the voltage directly tells us which way … consumer contracts legislation
How is it possible to have high voltage and low current? It …
WebThe linear density of electric current ($\frac{A}{cm}$) would have increased by a factor of 2, since now you have 20 turns of wire per length cm: electric current flowing through that 1cm of solenoid is now $20\times 1A$ instead of $10 A$ in the previous case. Now the magnetic field inside your solenoid has also increased by a factor of 2. WebNote that the way that voltage is reported for AC vs. DC powerlines is different; a ± 800 kV DC powerline has 1600 kV conductor to conductor (800 kV conductor to ground), whereas AC voltage refers to the conductor to conductor root mean square, or “rms” voltage; roughly speaking AC rms voltage is comparable to the line-to-line voltage in ... WebMay 31, 2024 · The issue in power transmission is to do it efficiently (at low cost) and safely. The power requirement is fixed. It is basically the voltage times current (forgetting power factor for the moment). The higher the transmission voltage, the lower the current for the same power. The lower the current, the smaller the wire size. edward jones grants pass oregon