PN Junction Diode

PN Junction Diode A PN-junction diode is formed when a p-type semiconductor is fused to an n-type semiconductor creating a potential barrier voltage across the diode junction The effect described in the previous tutorial is achieved without any external voltage being applied to the actual PN junction resulting in the junction being in a state … Read more

Source of solar energy, causes of origin of energy in the Sun, solar heating devices, solar cooker solar cell

Solar Energy : Source, Solar heating devices, solar cooker solar cell   Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth  is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy content directly—rather than … Read more

Topological and Nontopological conservation

Topological & Non-Topological Conservation   Conservation – shape and structure of networks of interacting organisms in ecological systems In-Situ Conservation   Protect whole ecosystem at all levels to protect threatened species (save entire forest to save tiger) Hot Spots – High endemism & high species richness (in India – Western Ghats (Agasthyamalai hills, Silent valley, … Read more

General information about CREDA

  CREDA – Chhattisgarh State Renewable Energy Development Agency   CREDA – Chhattisgarh State Renewable Energy Development Agency, has been constituted on 25th May 2001 under the Department of Energy, Government of Chhattisgarh for implementation of various schemes pertaining to Renewable Energy sources and Energy Conservation activities. It is registered under Society Act 1973 with … Read more

Electric current Ohm’s law and Resistance

Electric current Ohm’s law and Resistance   Electrical current is the flow of charged particles. The flow of charges will be constant in current electricity. Electric current flows from higher electric potential to lower electric potential. For the current to flow, it requires a circuit which is closed loop of a conducting material. The circuit … Read more

Some important organic compounds

Some Important Organic Compounds   The chemical compounds of living things are known as organic compounds because of their association with organisms and because they are carbon-containing compounds. Organic compounds, which are the compounds associated with life processes, are the subject matter of organic chemistry. Among the numerous types of organic compounds, four major categories are found … Read more

Working principle and use of generator

Working principle and use of generator   Generator is a machine that converts mechanical energy into electrical energy. It works based on principle of faraday law of electromagnetic induction. The faradays law states that whenever a conductor is placed in a varying magnetic field, EMF is induced and this induced EMF is equal to the … Read more

Magnetism – Magnet and it’s types artificial magnet

Magnetism Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects. All materials experience magnetism, some more strongly than others. Permanent magnets, made from materials such as iron, experience the strongest effects, known as … Read more

Precautions observed in electric experiments and Chemical effects of electric current

precautions observed in electric experiments and Chemical effects of electric current When it comes to working with electrical equipment, putting safety precautions in place for any electrical project is always a top priority. From basic knowledge and equipment safety to personal precautions and equipment performance, knowing what to do to help prevent injuries and ensure … Read more

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