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Experimenting with Raspberry Pi by Warren W. Gay

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APPENDIX C

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Electronics Reference

The experienced electronic hobbyist or engineer will already know these formulas and units well. This reference material is provided as a convenience for the student or beginning hobbiest.

Ohm’s Law

Using the following triangle, cover the unknown property to determine the formula needed. For example, if current (I) is unknown, cover the I, and the formula Eqna3a.jpgremains.

AppCTaba.jpg

Power

Power can be computed from these formulas:

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