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Robot Builder's Bonanza, 4th Edition, 4th Edition by Gordon McComb

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Appendix DElectronic Reference

Formulas

Here are some of the more common electronic formulas you will encounter in your electronics work. Many of these formulas have been with us for a long time.

OHM’S LAW

Ohm’s law calculates the relationship between power, voltage, current, and resistance. The basic formulas are:

image

where:

       V = voltage (in volts)

       I = current (in amps)

       P = power (in watts)

       R = resistance (in ohms)

image

Example:

To find the power in a circuit consuming 100 volts at 10 amps, multiply volts times amps (100 × 10 ...

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