Basics of Electronics (Resistor, Capacitor, Diode and Transistor)

1. BASICS OF ELECTRONICS
Resistor Capacitor
Transistor Diode

2. RESISTORS
Resistors are used to limit current or
divide voltage and in some cases, generate
heat.
Used for driving circuit which requires low
current and voltage than available.
A two terminal non-polar component
Unit of resistance is ‘Ω’.

3. Physical appearance

4. Color code table

5. Practical Use….
• To reduce the current flowing in circuit, use resistance in
parallel.
• To reduce the voltage for any circuit, use resistance in series.

6. CAPACITORS
A two terminal electronic component
which stores energy in form of charge.
Capacitance is a measure of a
capacitor's ability to store charge.
Measured in Farads(F) {μF or pF}

7. Types of capacitors
Polarised: Specified
+ve and –ve terminals
Non Polarised: No
defined terminals

8. Practical use
• Timer Circuits.
• Clipper & clamper circuit.
• DC filter circuits.

9. DIODES
• A two-terminal electronic component
that conducts electric current in only one
direction.

10. The direction of arrow shows the
only possible direction of current.

11. Types of diodes
• LED (Light Emitting Diode)
Emits light when provided with power supply.
• Photo Diode
Generates Current when it is exposed to light.

12. TRANSISTOR
• A transistor is a semiconductor device
commonly used to amplify or switch
electronic signals.
• The three terminals are Emitter, Base
and Collector

13. • Transistor are of two types:
1-> n-p-n
A straight switch
2-> p-n-p
A inverted switch

14. Practically used…
• As a switch
• As an amplifier

15. Matlab
Installation
Assembling
of Robot
Soldering
PCB