Oersted’s Experiment A magnetic field is produced in the surrounding of any current carrying conductor. The direction of this magnetic field can be obtained by Ampere’s swimming rule. SI unit of magnetic field is Wm-2 or T...

Heating Effects of Current When current 1 flows through a conductor of resistance R for a time t then heat generated in it is given by where, V = potential difference applied across the end, of the conductor. Electric Power The...

Electric Current (I) The rate of flow of charge through any cross-section of a wire is called electric current flowing through it. Electric current (I) = q / t. Its SI unit is ampere (A). The conventional direction of electric current is...

Charge Charge is that property of an object by virtue of which it apply electrostatic force of interaction on other objects. Charges are of two types (i) Positive charge (ii) Negative charge Like charges repel and unlike charges...

Deforming Force A force which produces a change in configuration of the object on applying it, is called a deforming force. Elasticity Elasticity is that property of the object by virtue of which it regain its original configuration after...

Every object in the universe attracts every other object with a force which is called the force of gravitation. Gravitation is one of the four classes of interactions found in nature. These are (i) the gravitational force (ii)...

Wave A wave is a vibratory disturbance in a medium which carries energy from one point to another point without any actual movement of the medium. There are three types of waves Mechanical Waves Those waves which require a material medium...

Periodic Motion A motion which repeats itself identically after a fixed interval of time is called periodic motion. e.g., orbital motion of the earth around the sun, motion of arms of a clock, motion of a simple pendulum etc. Oscillatory...

Methods of Heat Transmission There are three methods of heat transmission (i) Conduction In solids, heat is transmitted from temperature to lower temperature without actual movements the particles. This mode of transmission of heat....

The branch of physics which deals with the study of transformation of heat energy into other forms of energy and vice-versa. A thermodynamical system is said to be in thermal equilibrium when macroscopic variables (like pressure, volume,...