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 Calculate Voltage

 Method to Calculate Voltage





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How to Calculate Voltage

There are a number of formulas available which can be used to calculate the voltage.



To calculate the voltage in Volts (V) we have the formula,


V = W / Q

or Voltage = Energy Available in Joules (J) / Charge in Coulomb


where, W = Energy Available (J)

            Q = Charge (Coulombs)


we can also use the relation,


V = I R

Voltage = Current * Resistance


Current is taken in Amperes or sub-units and Resistance units are ohm.


Voltage is always measured in Volts (V).

Another formula which can be used to calculate voltage is V = P/I

where, P is the Power and I is the current in Amperes

Download Free Program to Calculate Voltage