energy saving led

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In order to live and enable ourselves to do everyday work we need energy. The prosperity of a country depends upon the availability of energy. Huge amount of electrical energy is used to run the air conditioners, cold storage and other domestic appliances. A large shar..

Fossil fuels and hydroelectric sources are the most readily available and the most widely used sources of energy around the world. In India, most of our population is rural based and uses wood or coal, about 75% of the population uses wood as a domestic fuel. This has led to a ..

The stocks of fuels are limited and hence use of energy saving devices is a must. As far as possible use only renewable sources of energy. More efficient heating installations should be employed while cooking. Incomplete combustion of fuel results in wastage of fuel le..

Growing consumption and non renewablity fossil fuel necessitate the conservation of this natural resource of to help in this effort many measures have been advocated. 1) Use of oil should be minimized so as to save it for future use. Public transport should be used as far possible. 2) Mo..

is a natural gas. It is produced from animal, water and weeds and other plants. India comes first in developing and using biogas technology. It is cheap, non-polluting and labour-saving fuel. Biogas can be used for cooking, lighting, and in vehicles. Solar energy, wind en..

Question: Explain the three R's in the conservation of environment? Answer: The three R's refer to Reduce, Recycle and Reuse. Reduce: Use less electricity by switching off unnecessary lights and fans, save water by repairing leaky taps, do not waste food. Recycle: Materials mad..

Introduction - In the nineteenth century scientists saw enough evidence to prove that each element has its distinctive atom. But all tem atoms contain identical electrons. In spite of the fact that electrons carry negative charge, atoms as whole were found to be neutral. This led to the f..

Introduction - We have seen in the previous lesson that a current carrying conductor when kept in a magnetic field experiences forces and torques. Is reverse phenomenon possible? If we rotate the coil in a magnetic field, will current flow in the coil without we passing it? The answer is yes. Curre..

This is the domain of living organisms in contact with atmosphere, hydrosphere as well as lithosphere. Man has begun to effect significant changes in his natural environment mainly after the advent of the Industrial revolution. The change in industrial and agricultural practices in the last 300 ye..