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ECE Final Review.pdf

ECE Final Review.pdf - DC and AC Circuits Final Review 1...

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DC and AC Circuits Final Review 1. Parts of an atom 2. Visual identification of series, parallel, and series-parallel circuits 3. Resistor color codes 4. How to measure voltage, current, and resistance in the lab 5. Current – the orderly motion of free electrons 6. Two requirements for current to flow 7. Voltage – also called electromotive force, potential – exists between two points or across circuit elements and can be described as “electrical pressure” 8. Units – Volt, Ampere, Watt, Ohm, Joule, second – and note that formulas are written for these base units (examples: Volts = Amps * Ohms, Watts = Volts * Amps, Watt = Joule per second) 9. Prefixes: (p, n, µ, m, k, M, G) how to use them with units and how to convert between them – especially 10 3 , 10 -3 , 10 6 , 10 -6 , which we use frequently with electronic circuits 10. Ohm’s Law: V = I R I = V / R R = V / I (be able to use all three forms) 11. Recognize series combinations (a single path for current) and parallel combinations (circuit elements that share the same two nodes) 12. Kirchhoff’s Voltage Law (sum of voltage drops around a loop equals zero) 13. Kirchhoff’s Current Law (sum of currents coming into a node equals sum of currents leaving a node) 14. Resistor combinations in series and parallel – how to calculate resistance for these combinations 15.
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