Science 

Principle of Electro Magnetism

Electro Magnetism. When a magnetic material like an iron bar placed inside a long coil of insulated wire carrying a strong current, the iron bar will behave like a magnet. The magnet made by this (electric) method is known as electromagnet and this phenomenon is known as electromagnetism. It is capable of raising heavier load than the permanent magnet. The magnetic field around the conductor in which the current is flowing all the lines shown would appear more as continuous in cylindrical or circle form around the conductor as long as…

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Science 

Law Applicable For Study of Electricity

Ohm’s Law The most important law applicable for study of electricity is Ohm’s Law. This law outlines the relationship between voltage, current and resistance in an electrical circuit. Ohm’s experiments show that whenever electric current is flowing through a conductor the following three factors are present: (a) The pressure or potential difference (V) across the conductor (measured in volts) causing the current to flow. (b) The resistance (R) of the conductor (measured in Ohm) which must be overcome. (c) The current strength (I), which is maintained in the conductor (measured…

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Basic Electrical Engineering – Introduction to Electrical

Basics of Electricity Electricity is a form of energy in which electron flows in a conductor from higher to lower potential in the same manner as water flows from higher to lower level. The flow of electricity can be detected by one or more of the following effects:- (a) Heating Effect. A flow of electricity will generate heat in the conductor through which it flows. This property is madeuse in lamps, Electric heaters etc. (b) Chemical Effect. A flow of electricity through certain solution will split the solution into its various constituents. This property…

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