Electricity

The present era is the era of electronics. Radio, television, phone, fax, camera, computer, watch etc. are the contributions of electronics. The control of the…

Although radioactivity is beneficial to us, it can be very dangerous also. The high dose of radioactive radiation can create serious problems in human body.…

There are a lot of uses of radioactivity in medical science, agriculture and industries. In medical science especially to treat incurable cancer, the uses of…

We can’t say which atom of a radioactive element will decay and when it will take place. But we can calculate how many atoms will…

Gamma Ray are charge neutral. This is an electromagnetic wave. It is of short wavelength. It has no mass. It is not deflected by electric…

These particles are negatively charged and largely deflected by magnetic and electric field. The speed of it is 50% of the speed of light but…

Alpha particle is a Helium nucleus. There are two protons and two neutrons in its nucleus. The penetrating power of alpha particle is less; it…

In 1896, French scientist Henry Becquerel observes that a radiation with special penetrating power emits spontaneously from the nucleus of Uranium metal in a continuous…

A transformer is made on a soft iron core in the rectangular form in which two coils of insulated copper wire are inserted in its…

The electrical device through which the high alternating potential can be changed into low alternating potential and low potential into high potential is called a…