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# 01 intro to electronics

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### Transcript

• 1. Basic Electronics
• 2. Requirement for a Complete Circuit
• Source
• Battery, Generator, AC Voltage source, Photovoltaics, etc.
• Load
• Light bulb, motor, buzzer, heater, LED, LCD, Digital Circuit, etc.
• Conductors
• Switch
• Slide, momentary, toggle
Energizer + _
• 3. Schematic Diagrams Energizer + _
• 4. TERMS, SYMBOLS AND UNITS OF MEASUREMENT
• Term Description Symbol Unit of Meas. Symbol
• Charge Quantity of Accumulated Electrons Q Coulombs C
• Voltage Electromotive Force E/V Volts V
• Current Rate of Electron Flow I Amps A
• Resistance Opposition to Electron Flow R Ohms Ω
• Power Rate of doing Electrical Work P Watts W
• 5.
• 6.
• 7.
• Flow of Electrons in a copper wire
• 8. Using a Multimeter: Measuring Resistance
• Using the Ohmmeter
• Measures resistance in a circuit.
• The circuit must be “dead.”
• Choose the  setting on the meter.
• Insert the Red (+) test lead into the voltage/  connector on the meter. The black (-) test lead should be in the COM connector
• If the component to be measured is mounted on a printed circuit board then disconnect one end of the component to be measured from the circuit.
• Place the leads of the meter across (in parallel) the component to be measured.
• 9. Using a Multimeter: Measuring Voltage
• Using the Voltmeter
•   1.Measures the electromotive force (voltage) between two points.
• 2. The circuit must be “live.”
• 3. Choose the AC voltage or DC voltage setting on the meter.
• 4. Insert the Red (+) test lead into the voltage/  connector on the meter. The black (-) test lead should be in the COM connector
• 5. Place the leads of the meter across (in parallel) the component to be measured.
V V
• 10. Using a Multimeter: Measuring Current
• Using the Ammeter
• Measures electron flow (current) in a circuit.
• The circuit must be “live.”
• Choose the AC amperage or DC amperage setting on the meter.
• Move the red test lead from the voltage/  connector to the amperage connector on the meter.
• Break the circuit and place the meter in series with the component to be measured.
A
• 11. ENGINEERING NOTATION
•
• 10 12 10 9 10 6 10 3 10 0 10 ‑3 10 ‑6 10 ‑9 10 ‑12
• ____________________________________________
• Tera Giga Mega Kilo Base milli micro nano pico
• T G M k ohms m μ n p
• amps
• volts
• watts
• SLL‑LSR
• 12. Quiz Time!!!!
• 13.
• 14.
• 15.
• 16.
• 17.
• 18.
• 19.