Development of Physics Modern civilization is the product of science. Behind this development of science, there are untiring efforts, discoveries, and innovations of scientists. Science has no national or political boundaries. The growth, development, and benefit of science are enjoyed by all people of all nations. From ancient time scientist have been contributing to the development of science. In … Read more
Scope of Physics Since physics is the oldest and the most fundamental branch and other branches somehow flourished on the basis of physics, it is very natural that the scope of physics is very vast. Not only that, different technologies have flourished based on different laws of physics and we are using these in our … Read more
Objectives of Physics Physics unearths the mystery of nature: Physics is the fundamental branch of science because its principles are the basis of other branches of science. For example, the principle of conservation of energy is a principle of physics used to explain the wide range of science starting from the structure of atoms to weather … Read more
What is a generator? What is the function of a generator? A generator is a power generating device with which kinetic energy is converted to electrical energy. The making of a generator is based on the principle of electromagnetic induction. Most of the electricity we use in our homes is produced by generators. Inside a … Read more
Background of Biophysics Biology tries to understand the diversity of the living world and the process through which living things lead their lives. How do the animals collect food, develop relations with one another, perceive the environment and reproduce all these are the subject matter of biology. On the other hand, the laws followed by … Read more
What is radioactivity? Radioactivity is the emission or transmission of ion in the form of waves or particles through space or material medium by the spontaneous disintegration of atomic nuclei. What is called Becquerel? Becquerel is the SI unit of radioactivity, corresponding to one disintegration per second. What is meant by the half-life of radioactive … Read more
What is solenoid? Solenoid is a cylindrical coil of wire which creates a magnetic field like a bar magnet when electricity flows in it. Why step-up transformer is used to transfer current for long distance? When current flows through a resistance, heat is generated and this is the loss fo electrical energy. This loss is … Read more
11.1 Electric Current 11.2 Relationship between Potential Difference and Electricity 11.3 Electric Power 11.4 Electric Supply 11.5 Safe Use of Electricity 11.6 Design of Circuit in Residence