A circuit requires three components: a voltage source, a conductive path, and a resistor. Resistance is a measure of opposition to current flow and is measured in ohms. There are different methods for earthing electrical conductors, such as using a copper or galvanized plate buried underground or a galvanized steel pipe in the ground. Electrical plugs and sockets come in different configurations depending on the number of pins, with three-pin plugs having an earthing pin, live pin, and neutral pin.

1. Presented by
Aritras Chakraborty

3. A circuit is the path that an electric current travels on,
and a simple circuit contains three components
necessary to have a functioning electric circuit, namely,
a source of voltage, a conductive path, and a resistor.
Circuits are driven by flows

4. Resistance is a measure of the
opposition to current flow in an
electrical circuit. Resistance is
measured in ohms, symbolized by
the Greek letter omega (Ω).
WHAT IS RESISTANCE

7. RESISTANACE COLOUR
CODE

10. Earthing is used to protect you from an electric
shock. It does this by providing a path (a protective
conductor) for a fault current to flow to earth.
EARTHING

12. PLATE EARTHING
A copper plate or galvanized plate is buried in
an earth pit below ground level. The plate
electrode connects the electrical conductors to
the earth

13. PIPE EARTHING
A galvanized steel pipe inside the ground
connects the electrical conductors to the
earth.

15. D. C. WAVEFORM

16. SYMBOLS

17. THREE PIN SOCKET
In a three pin socket,
the upper big hole is for
earthing, the hole on
the right is for the live
wire connection and the
hole on the left is for the
neutral wire connection.

18. FIVE PIN SOCKET
In a five pin socket, the
upper big hole is for
earthing, the upper and
lower two holes on the right
is for the live wire
connection and the upper
and lower two holes on the
left is for the neutral wire
connection.

19. TWO PIN PLUG
In a two-pin plug, the
left pin is for live and
the pin on the right is
for neutral.

20. THREE PIN PLUG
In a three-pin plug, the
top pin is for earthing,
the pin on left is for live
and the pin on the right
is for neutral.

21. MULTI PIIN SOCKET

22. LAMP HOLDER

23. THANK YOU