physics questions-electricity

Current Electricity - One of the greatest discoveries of the eighteenth century was the discovery of electricity. Think of life today without electricity and you will realize the part electricity plays in our day to day life. Static charges will not heat a to..

Electric field can be quantitatively described by using the concept of electric flux. Electric flux is the number of electric field lines penetrating a surface or passing through a surface. The electric field can be uniform or non-uniform. Let us no..

The electric field or electric field strength is the electrostatic force acting on a small positive test charge placed at that point. If is the electrostatic force experienced by a test charge q at a point, then the electric field intensity at that point is given ..

Your everyday experiences have familiarised you with many electric circuits. Let us take an example of an electric circuit with a battery (a source of electricity), toaster and a switc..

It is a pair of point charges with equal magnitude and opposite in sign separated by a distance. Many physical systems from molecules to TV antenna can be described as electric dipoles. A water molecule is an example of an electric dipole. Even though the water molecul..

One of the greatest discoveries of the eighteenth century was the discovery of electricity. Think of life today without electricity and you will realize the part electricity plays in our day to day lif..

Batteries produce electricity by converting chemical energy into electrical energy. Batteries provide electricity to torches, transistors, toys, clocks and watche..

Introduction - Electric current is a means by which electrical energy is transferred from one place to another for utilisation. Charges in motion constitute an electric curren..

is a means by which electrical energy is transferred from one place to another for utilisation. Charges in motion constitute an electric current. We know from electrostatics that when an isolated conductor is placed in an electric field, the charges in the conductor ..

Electric Motor - An electric motor is a device which converts electrical energy into mechanical energy. It works on the principle that when an electric current is passed through a conductor placed normally in a magnetic field a force acts on the conductor as ..