On 17/01/2004 ripper opined:-
Using the same power with a voltage of 240 Volts,
I = P/V which is 9500/240 = 39.6 Amps.
Now at 250 Volts, I = 9500/250 = 38 Amps.
And if you use 110 Volts, the amps now increase to 86.4 Amps

No it does not!

For an unvaring value of resistance, half the voltage and the current
and the wattage drawn would also be reduced by half.

If the current and the wattage stayed the same, then their would be no
need to produce different appliances for different voltages and
different markets would there? You could quite happily plug the bulbs
from your car into the mains, after all a 50w bulb is a 50w bulb if the
voltage rating doesn't matter :-)

Simple proof....

What happens to your lights during a 'brown out'?

During a 'brown out' your supply voltage will decrease, your lights
draw less current and less than their rated wattage. You are trying to
argue that the wattage would remain constant and therefore your lights
would not dim.

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Regards,
Harry (M1BYT) (Lap)
http://www.ukradioamateur.org