What are various Effects of Electricity? बिजली के विभिन्न प्रभाव क्या हैं?

Effects of Electricity

Electric current has three effects:

·         Heating Effect

·         Chemical Effect

·         Magnetic Effect

a.) Heating Effect: Joule’s Law states that the rate at which heat is produced in a resistor is proportional to the square of the current flowing through it, if the resistance is constant.

H= I² R.t

Examples: Electric cookers, kettles and toasters are among the household appliances that rely on it.

b.) Chemical Effect: Passing an electric current through a liquid causes chemical changes in a process called electrolysis.

Examples: Gold and silver plating of cutlery and jewellery.

  

c.) Magnetic Effect: Electric current passing through a wire generates a magnetic field around the wire.

Examples: Electric motors and electromagnets.

In a car, for example, the central locking uses electromagnets called solenoids to operate the lock mechanism.
Another example is the loudspeaker, where variations in the magnetic effect of an electric current are translated into sound waves that we can hear.