Measuring electricity is really easy—we're all familiar with electrical units like volts, amps, and watts (and most of us have seen moving-coil meters in one form or another). Measuring magnetism is a little bit harder. Ask most people how to measure the strength of a magnetic field (...
The power in an electric current is equal to the current times the voltage (watts = volts x amps is one way to remember this), so you can see the power in the secondary coil is theoretically the same as the power in the primary coil. (In reality, there is some loss of power ...
Lol.. Heat are given off in Watts not volts.. 5V x 4A = 20W more heat than 9V x 2A = 18W.. You cannot bend physics.. It is the battery tech or the heat management that allows it to charge cooler than others.. And that 4A is no play either.. Get that 4A through your finger...
87×63 @ 184,12A battery. The voltage of square root of two is strange, but getting about 1.41412... volts is not unheard of. This could also indicate anRMSvoltage, although this is unlikely given that this is a DC power supply and not an AC generator. The marked polarity is also th...
If your kettle were rated at something like 2400 watts (W) and you were using a UK power supply of 240 volts (V), that means the current passing through the element would be 2400 / 240 or 10 amps (A). By household standards, that's a hefty current: in comparison, the little ...
Typical electric bike batteries make about 350–500 W of power (that's about 35–50 volts and 10 amps), which is about a quarter as much as you need to drive an electric toaster. In theory, you could use any kind of battery on a bicycle. In practice, however, you want to use ...