Ampere-volts?

Question

how do you compute for the ampere when you're only given the volts? (27 volts)

Answer 1

You may not be able to do that unless you know the (R) resistance or (Z) Impedance of the circuit to which the circuit is subjected. Impedance is the sum of Reactance and resistance in an AC circuit. there are two types of reactances i.e.
Inductive reactance = XL (X with a subscript L ) where L is the Inductance of the circuit in Henries.
Capacitive reactance Xc where C is the Capacitance of the circuit in farads

therefore Z =Xl +Xc + R

XL = 2 Pi Fl where F is the frequency of the alternating current
Xc = 1/2 pi Fc

once you know that try using Ohms law
I= V/ R or V/Z


If your given the VA or the volt ampere of the device like a transformer, or battery, then divide the VA with the Volt and you get the Amperes.

Hope that made some sense.

Best of Luck.
Brian

Answer 2

You cant

You would need another reading as well.

IE Power = Amps X Volts or using the triangle

P
I V

Cover the one you want IE if you want Amps(I) its Power divided
By Volts

Or

V
I R

V Volts, I Amps, R Resistance