Electronics basic concept

1. ELECTRONIC DEVICES
LECTURE 1
SHALET K S
Asst. Prof

2. Let us make things easy !!
• Electronics is all about how the electrons play around.
• If the movement of electrons and their association with
the various elements in their way is understood, the
subject becomes a child’s play.

3. e-
Electron = Marble

4. Battery = Tank of Marbles
The amount of marbles in the tank, the pressure inside the tank can be
varied.

5. VOLTAGE
e- e-
Energy needed by this electron to move from point
A to B
is Voltage.
A B

6. e- e-
CURRENT
The rate at which the electron moves is called Current.

7. Resistor = Speed Breaker
e- e-
The resistor slows down the flow of electrons.

8. CAPACITOR