Regulated Power Supply Circuit

Today i'll give you a circuit diagram for regulated power supply which will give regulated DC output
In this circuit we uses a LM317 and LM337 as regulators,LM317 is for regulating a +ive voltage and LM317 is for regulating -ive voltage, in the start of circuit there is a bridge rectifier for converting AC to DC and capacitors to remove ripples.

Here are the components that are used in this circuit:-

Capacitors:
C1, C2 (2200 uF 50V)
C3, C4, C5, C7 (2.2 uF 50V)
C6, C8 (100 uF 50V)

Resistors:
R1, R4 (5K Potentiometer)
R2, R3 (220 Ohms 1/4 W Resistor)

Active Components:
D1 to D4 IN 4007 Diodes
U1 LM317 U2 LM337

T1 (24-0-24 Center Tapped 2 Ampere Transformer)
S1 ( Switch)


If you have any query regarding this circuit comment below.
Best of Luck Engineers :D

Power Distribution System

Today i'll give you complete diagram which will show you about the Power Distribution System.
From power plant there is a Step up transformer which convert generated voltage in to high voltage to reduce losses.
Power plant can be any form hydro,wind,coal,thermal.
After that it is converted into 230KV to supply substation after substation it is converted in to 69KV and then to 11KV, now some industries require 11KV so before further step down of voltage it is supplied to industries, after that 11kV is further step down to 220-240V for houses and other residential areas 

Electricity from Bacteria !!!!!!

Most bacteria, like all animals, get their energy from the cellular respiration process, which converts glucose and oxygen to carbon dioxide and water. Oxygen accepts electrons as it combines with other chemicals in reactions. But bacteria when underground have no oxygen to breathe. For that they produce energy for their growth by transferring electrons to rust and other surrounding metal oxides.

 Bacteria at the, converting plant and animal debris in the mud into electricity and carbon dioxide. Electrons flow through wires to a cathode sitting in water above the mud, where they combine with oxygen to complete the circuit. The bacteria are highly efficient and can produce electricity continuously for many months or even years.