Physics

Earth is an electric conductor. When a charged body is connected to the earth, it becomes electrically neutral. When a positively charged body is grounded…

The role which is played by temperature and the height of free surface of liquid in heat and hydrostatics respectively, potential plays the same role…

The work done to bring a unit positive charge from infinity to a point in an electric field is called the potential of that point.…

As there is intensity of an electric field, it also has electric potential. Potential determines the direction of motion of a charge in an electric…

Michel Faraday introduced electric lines of force to get an idea about electric field. If a positive charge is placed in an electric field it…

Suppose A is a positively charged body. Now if a charge +q is placed at point P, then due to the charge of A, the…

Law: The forces of attraction or repulsion between two charged bodies in particular medium is directly proportional to the product of the charges and inversely…

Nature of force: A positively charged plastic rod is suspended by nylon string. Now a negatively charged polythene rod is brought near it. What do…

The instrument which detects the presence and nature of charge in any body is called electroscope. A metallic circular disk is fixed on the top…

We know that when two bodies are rubbed together electric charge is produced. Again when a charged body is brought in contact with another neutral…