You simply can't convert between totally unrelated types of measurements.
There is no corelation between amps and hertz
15 Amps
a meter for amps
64 amps in less than 100 meter long
with a resistor 300K in series with the 50 micro amperes DC meter
4.3 amps
A current of 287 microamps, which is 0.000287 amps.
To convert VA to amps, you can use the formula Amps = VA / Volts. In this case, Amps = 140 VA / 240 V = 0.5833 Amps.
Amps is amps be it DC or AC.
Watts are the product of amps x volts.
To convert amps to milliamps, multiply by 1000. Therefore, 0.01 amps is equal to 10 milliamps.
At what voltage? When you know the voltage then, to get the amps those kilovolt-amps contain, you simply divide the kilovolt-amps by the voltage.