Basic Electrical

BASIC ELECTRICAL

In physics, a state of matter is one of the distinct forms that matter takes on three states of matter are observable in everyday life: solid, liquid, and gas. Solid matter unit is gram, liquid unit is liter and gas measured in cubic feet.

In electrical some basic quantities are used. These quantities are different to each other, its units are different, and its measuring instruments are different.

Electrical Quantities:

There are five basic electrical quantities.

S. No.	QUANTITIES	UNITS	MEASURING INSTRUMENTS
1	Voltage          (V, E)	Volt         ( V )	Volt Meter
2	Current          ( I ) Load	Ampere  ( A )	Ampere Meter
3	Resistance     (R )	Ohm        (Ω )	Ohm Meter
4	Wattage         (W, P) Electrical Power	Watt        ( W )	Watt Meter
5	Frequency     (f)	Hertz       ( Hz )	Frequency Meter

Short Definition of Electrical Quantities for interview:

1.             Voltage:

Force which flow of electrons.

2.             Current: (Load)

Rate of flow of electrons.

3.             Resistance:

Opposition offered to the flow of electrons.

4.             Wattage: (Electrical Power)

When one joule expended in one second.

5.             Frequency:

In AC Supply, number of cycles passed through in one second.

These quantities are very importenet for all types of electrician.

What is the work of a electrician?

Electrician work is only testing, measuring and analyzing of electrical quantities. Voltage, Current, Resistance Wattage (Electrical Power) and Frequency therefore, each electrician must know the electrical quantities.

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