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- Ohms Law Calculations
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- VERSION 1.1
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- This program takes the 12 basic Ohm's Law expressions and
- allows you to calculate Watts, Ohms, Volts, and Amperes with
- any 2 known values.
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- You may enter a number of up to 6 digits. The output will be
- calculated to the nearest 1/100TH.
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- The expressions used to calculate are as follows:
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- TO OBTAIN WATTS:
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- 1. (E SQUARED), DIVIDED BY R;
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- 2. (I SQUARED), MULT BY R;
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- 3. E MULT BY I;
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- TO OBTAIN OHMS:
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- 4. (E SQUARED), DIVIDED BY W;
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- 5. W, DIVIDED BY (I SQUARED);
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- 6. E, DIVIDED BY I;
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- TO OBTAIN VOLTS:
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- 7. I MULT BY R;
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- 8. W DIVIDED BY I;
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- 9. SQUARE ROOT OF (W, MULT BY R);
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- TO OBTAIN AMPS:
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- 10. E, DIVIDED BY R;
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- 11. SQUARE ROOT OF (W, DIVIDED BY R);
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- 12. W, DIVIDED BY E;
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- WHERE E = VOLTS; I = AMPS; R = OHMS; W = WATTS.
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- The Program is completley menu driven, additional
- documentation should not be necessary.
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- To give you a example, start the program at the DOS prompt by
- typing "Ohms" and press the Enter key. A brief version and
- description screen will be displayed.
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- Let's say you want to know how many Amps an electric heater
- draws. You know how many Watts it consumes, as well as the
- operating voltage.
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- At the MAIN MENU, press "4", and at the SUB-MENU press "3",
- to calculate Amps when the Watts and Volts are known.
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- Enter the value for Watts. For our example, lets say 1200
- Watts. Next enter the value for Volts. Let us assume 120
- Volts.
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- The program will take the correct expression and calculate
- the Amps. For this example, the expression = W, Div by E.
- 1200 Watts, Divided by 120 Volts = 10.00 Amps.
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- You may calculate another similar value, return to the sub-
- menu, or return to the main menu to calculate a different
- value, or quit the program.
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- Please notice the result is for DC or AC resistive circuits.
- Also for AC circuits, the results are for single phase
- circuits.
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- You are free to copy and distribute the program as long as
- you do so by copying the program and documentation together
- without alteration, and without charge. If you find the
- program useful, a contribution would be appreciated.
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- The author assumes no responsibility for inaccuracies
- obtained from using the for-mentioned program.
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- Please report any problems to the author.
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- C. Eldridge
- C/O NAPCO SCIENTIFIC CO.
- PO BOX 1000
- TUALATIN, OR. 97062-1000 87-04-17
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