grouppresentation on electricity

Group Presentation On Electricity : 

Group Presentation On Electricity Presented to: Mirza Danish Baig Presented by : Mirza Taimoor Baig Muhammad Zubair Muhammad Zubair Bilal Akbar Khalid Waheed IQRA UNIVERSITY 1 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

HISTORY OF ELECTRICITY : 

HISTORY OF ELECTRICITY An English scientist, Michael Faraday, was the first one to realize that an electric current could be produced by passing a magnet through a copper wire. It was an amazing discovery. Almost all the electricity we use today is made with magnets and coils of copper wire in giant power plants. 2 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

DEFINATION: 

DEFINATION Electricity is a form of energy produced by the movement of electrons. Electricity is electrical power or an electric current. This form of energy can be sent through wires in a flow of tiny particles 3 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

ELECTRIC CURRENT: 

ELECTRIC CURRENT Electrical current is a measure of the amount of electrical charge transferred per unit time. The SI unit of electric current measured in amperes (I) 4 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

POTENTIAL DIFFERENCE (VOLTAGE): 

POTENTIAL DIFFERENCE (VOLTAGE) The amount of energy per unit charge needed to move charged particle from a reference point to a designated point in a static electric field. The SI unit of voltage measured in volts (V) 5 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Generation of Electricity: 

Generation of Electricity Generation of electricity in four steps... Generation Transmission Distribution Metering 6 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Slide 7: 

Generating Electricity For many years, we have generated electricity in much the same way: We can also use the heat from NUCLEAR REACTIONS to make the steam. 7 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Generation: 

Generation We can generate electricity by following ways .. 8 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Fossil fuels: 

Fossil fuels These fuels were dug out of the ground. They had taken millions of years to make and so are called FOSSIL FUELS and are NON-RENEWABLE. A fossil-fuel power station is a power station that burns fossil fuels such as coal, natural gas or petroleum (oil) to produce electricity. 9 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Hydro-electric: 

Hydro-electric Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy. 10 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Nuclear: 

Nuclear Nuclear reaction such as Uranium is used to produce a chemical and nuclear reaction which makes a lot of heat. This heat is used to turn water into steam, which turns turbines...turbines generate electricity. 11 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Slide 12: 

Geothermal In certain parts of the world, heat from the Earth can be used to produce steam to power turbines and create electricity. 12 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Solar: 

Solar Solar cell (called photo electric-cell) that convert light into directly electricity This was originally develop in order to provide electricity for satellite. 13 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Wind: 

Wind Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity. 14 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Transmission: 

Transmission Electric power Transmission is the transfer of electrical energy from generating power plants to substations located near population areas. Transmission lines mostly use three phase Alternating Current. Electricity is transmitted at high voltages of 110 kV or above. 15 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Distribution: 

Distribution Distribution is the final stage in the delivery of electricity to end users. It includes medium-voltage less than 50 kV.` Electricity is further supplied to the customers by using transformers which reduces the voltage to 220V. 16 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Metering: 

Metering An electricity meter is a device that measures the amount of electric energy consumed by customer in kilo watt hour (kWh). E.g. 1 unit = 1 kWh. Here in Pakistan 1 unit = 13 RS. There are many types of meters: Electromechanical meter Electronic meter 17 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Power: 

Power Energy transfer can be used to do work, so power is also the rate at which this work is performed. The SI unit of power is measured in watts. Power (P) = Voltage (V) * current (I) 18 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Ohm’s law: 

Ohm’s law To make a current flow through a resistance there must be a voltage across that resistance. Ohm's Law shows the relationship between the voltage (V), current (I) and resistance (R). Voltage (V) = current (I) * Resistance (R) 19 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Resistance: 

Resistance Resistance is the property of a component which restricts the flow of electric current. All material have a resistance that is dependent on cross-sectional area, material type and temperature. 20 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

Transformer: 

Transformer Static electrical device that transforms electrical energy from one voltage level to another Two or more coils linked magnetically but electrically insulated 21 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011

THE END: 

Thank u for watching  THE END 22 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY Thursday, November 24, 2011 Now u can frequently ask question 

Slide 23: 

Thursday, November 24, 2011 GROUP PRESENTATION ON ELECTRICITY IQRA UNIVERSITY 23