Domestic Electric Circuits, Short Circuiting & Overloading
Domestic Electric Circuits
In our homes, the electric power supplied is of potential difference V = 220V and frequency 50Hz. It consists of three wires:...
Electric Devices: Electric Motor, Galvanometer & Electric Generator
Electric Motor
Electrical energy is converted into mechanical energy by using an electric motor.
Electric motor works on...
Force on a current carrying conductor in a magnetic field
Force on a current carrying conductor in a magnetic field
Andre Marie Ampere (1775–1836) suggested that the magnet also exert an equal and opposite force...
Solenoid & Electromagnet
Solenoid
A Coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called solenoid.
Magnetic field due to...
Magnetic field due to Current Carrying Conductor
Magnetic field due to Current Carrying Conductor
The above electric circuit in which a copper wire is placed parallel to a compass needle, shows the...
Magnetic Field and Related Terms
Magnetic Field and Related Terms
Moving charges or electric current generates a magnetic field.
Hans Christian Oersted (1777-1851)
Oersted showed that electricity and magnetism are related to...
General Circuit Element Symbols
General Circuit Element Symbols
Heating Effect of Electric Current & Power
Heating Effect of Electric Current
Explanation → Battery or a cell is a source of electrical energy.
Battery or cell (Chemical reaction...
Resistance of a system of resistors: Series & Parallel
Resistance in Series (Maximum Effective Resistance)
Let us take three conductors/resistors of resistance R1, R2 and R3 that areconnected in series in a circuit.
Ohm’s law...
Ohm’s Law
Ohm's law
George Simon Ohm found the relationship between the current (I) flowing through a conductor and potential difference (V) across the terminals of a...