Electricity Calculator

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Detailed Description

Various electricity-related calculations

Provides Computations involving watts, voltages and amperes.
Alos, using this service you may select the size of a cable for your household appliances.

Terms Defined:
	Amperes: is the rate of flow of current. An amp,
	  in short, is one coulomb per second. A common
	  household applicance, such as a refrigretor
	  requires 15 amp plug.Most household gadgets
	  require a 15 line.
	Volts: This is the pressure of the electric
	  power. Most household wiring has 120V.
	Watts: Actual amount of power fowing in a wire
	  is quantiffied as Watts. This is what our
	  electricity bill is based on.

Usage Notes

Methods Provided:
-----------------
* Compute the maximum amperes for a Copper Wire thickness 
allowed to carry by regulations. 

	int computeAmpacity(java.lang.String wire) 

	Example:
		wire (Wire Size) = 12
		Returns (Ampacity in amperes) = 20


* Compute Amperes from Volts and Watts. A = W / V

	int computeAmps(int Volts, int Watts) 

	Example:
		Watts = 6
		Volts (Voltage) = 120
		Returns (Amperes) = 20

* Compute Voltage, V = W /A 	Ohanian, 1985

	public int computeVolts(int Amps, int Watts)

	Example:
		Amps = 20
		Watts = 6
		Return Value (Voltage) = 120

* Compute watts, W = V * A 

	int computeWatts(int Amps, int Volts) 

	Example:
		Amps (Amperes) = 20
		Volts (Voltage) = 120
		Returns (Watts)= 6

* Compute Copper Wire Thickness as required by regulations 
for a given ampacity 

	java.lang.String computeWireSize(int Amps) 

	Example:
		Amps (Amperes) = 20
		Returns (Wire Size) = 12


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