Power is directly-proportional to the square of the current.
You do not need ohm's law to relate power to current and voltage. Power is current times voltage. If you know current and voltage, you do not need to know resistance.
To actually show youth power in a form that they could appreciate it it would have to be done in a way that they could relate to it. An easy example I would use it war. Anyone can relate to violence. If you demonstrate directly it would be quite an obvious display of power.
: They are directly related Either one increases power rating will increase. For an IC either one increases will dire-rate the component.
Basically, Power = Current*Voltage Current = Power/Voltage Current = 15/120 Current = 0.125A or 125mA
Since power = current x voltage, you would divide the power (watts) by the voltage. The answer would be 1/10 amps or .10 amps.
Power = Voltage * Current Current = Power/Voltage, = 2,750,000/110,000 = 25 amps.
If current increases, then voltage also has to increase, assuming that resistance stay relatively the same. Power will also increase. Since power is the product of voltage and current, then the power increase would be the square of the voltage or current change.
power cuts
You can convert 1hp in to 745watts off power, and using the power formula I=amps(current) P=power(watts) and U=volts so I=P/U if conected to a 230v supply the current would be 3.23amps and 110v would be 6.77amps
If two identical batteries were connected in series, the resulting voltage would double, the available current would remain the same, and the available power would double. Note that, by Ohm's Law and the Power Law, doubling the voltage into a set resistance would double the current and quadruple the power. This is inconsistent with the battery's ability to provide a certain current, so you would also need to double the load resistance, otherwise you could damage the battery.
Ohms do not relate to power per se. Ohms do however contribute how much power a circuit can deliver. In a given circuit the lower the resistance (measured in ohms) the higher the current & higher the power. This is assuming the voltage remains constant.
Astronomers and astrologists.