Through-hole Components

•A resistor is an electronic component that resists the flow of electrical current.

•A resistor is typically used to control the amount of current that is flowing in a circuit.

•Resistance is measured in units of ohms () and named after George Ohm, whose law (Ohm’s Law) defines the fundamental relationship between voltage, current, and resistance.

1- Resistors

2- Types and Package Styles

3- Size Comparison

4- Determining A Resistor’s Value

5- How To Read A Resistor’s Value

6- Resistor Value: Example #1

7- Resistor Value: Example #2

8- Resistor Value: Example #3

9- Measured Value

•A capacitor is an electronic component that can be used to store an electrical charge.

•Capacitors are often used in electronic circuits as temporary energy-storage devices.

•Capacitance is measured in units of farads (F) and named after Michael Faraday, a British chemist and physicist who contributed significantly to the study of electromagnetism.

1- Capacitor

2- Types and Package Styles

3- Types and Package Styles (Continue)

4- How To Read A Capacitor’s Value

5- How To Read A Capacitor’s Value (Continue)

6- Capacitor: Esxample #1

7- Capacitor: Example #2

Common Electronic Components

Component Identification (All)

These components are easy to identify through their three terminals. For the components to work, voltage has to be applied to one of them; the base terminal. The base can then control current flow in the two other terminals (the emitter and collector).

Diodes allow electric current to flow in a single direction only. Each diode has two terminals known as the anode and cathode. When the anode is charged with positive voltage and the cathode with a negative one, electric current can flow.  Reversing these voltages will prevent the current from flowing.

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