Module 1 - Part 1: Introduction to Electrical Engineering

Conventional Sources of Energy

• Conventional sources of energy include fossil fuels such as coal, oil, and natural gas.

Importance of Energy

• Energy is a crucial element for economic development.
• The most important source of energy mentioned in the text is coal.

Power Generation

• Thermal power generation mainly utilizes coal and oil.
• Electrical appliances like fridges and TVs use alternating current (AC) power.

Coal Deposits in India

• The majority of coal deposits in India are found in the eastern region, particularly in Jharkhand, Odisha, and West Bengal.

Petroleum

• Petroleum is considered "liquid gold" and a crucial energy source in India and the world.

Non-Commercial Energy Sources

• Sunlight and wind are non-commercial energy sources that are freely available.

Nuclear Power Plants

• The main fuel used in nuclear power plants is uranium.

Oil Deposits in India

• Oil is mainly found in India in the western region, particularly in Gujarat and Mumbai.

Global Coal Production

• The fourth-largest coal-producing country is India.

Energy Terminology

• The capacity to do work is referred to as energy.
• The term "energy crisis" is used to describe the relationship between economic development and energy consumption.
• The text describes six major sources of energy.
• The word "energy" was first used by Thomas Young in 1807, and it is derived from the Greek "en-ergon".
• The country with a higher per capita energy consumption is likely to be a developed country.

Electrical Circuits

• The practical unit of resistance is the ohm (Ω).
• An electric circuit is a path through which electric current flows.
• The reciprocal of resistance is conductance.
• The property of a substance that opposes the flow of electricity through it is resistance.
• KCL stands for Kirchhoff's Current Law.
• The components of an electric circuit are known as circuit elements.
• The fundamental positive charge of electricity is the proton.
• The SI unit of electric charge is the coulomb (C).
• The ability of a charge to do work is called electric potential.
• The movement or flow of electrons is called electric current.
• The relationship between voltage, current, and resistance in a DC circuit is called Ohm's Law.
• A closed path in a circuit in which no element or node is encountered more than once is called a loop.
• A junction in a circuit where two or more circuit elements are connected together is called a node.