Here we will see connection of Led bulb and Battery.
BASIC UNDERSTANDING OF CIRCUITS
Usually digital electronics will use DC supply. So let’s understand the connection of LED bulb with battery. On the other hand, it is important to understand some AC concepts.
In a direct current (DC) circuit, current flows in one direction only. Where one pole remains positive on the other hand other pole is always negative. However, in an alternating current (AC) circuit both poles alternate between negative and positive and the direction of the current (electron flow) reverses periodically (time to time).
When we talk about batteries that means DC supply. Battery (batteries are always DC) has two terminal one is positive (+) and other is negative (–) see diagram below
2. LED BULB
LED also has two terminal anode (positive +) and cathode (negative –)
When positive terminal of battery connected to positive terminal of LED bulb and negative terminal of battery connected to negative terminal of LED bulb then led bulb will glow and this is known as Forward Bias condition.
Now answer some question to understand it better.
LED CONNECTION WITH BATTERY
Question 1 – In the diagrams (a) (b) (c) (d) given below which Led bulb will glow?
Question 2 – Which circuit in the diagrams (a) and (b) given below will light up the Led bulb ?
Question 3 – Find in the diagrams (a) (b) (c) and (d) given below which Led bulb will glow?
WHAT IS ELECTRONICS?
CLASSIFICATION OF MATERIAL BASED ON BAND GAP