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Introduction - (Concept)

Electricity is indispensable to us. Physical phenomena that are associated with the presence and flow of electric charge is known as electricity. Electricity and electrical phenomena have a huge number of applications in our day-to-day life and they also give a lot of variety of well-known effects, such as lightning, static electricity, electromagnetic induction, and the flow of electrical current. From the humble torch to the powerful computer, thousands of things we use every day need electricity to work. The source of all electricity is charge. As charge is the basis of all electrical phenomena, we often need to know the amount of charge on a body. It is measured in coulombs. Coulomb is the SI unit of charge and it is represented as C.

 

Important terms used in electricity and which we are going to study in detail in the upcoming concepts :

  1. Electric charge: It is a property of some subatomic particles which determines their electromagnetic interactions.

  2. Electric current: It is a movement or flow of electrically charged particles which is typically measured in amperes.

  3. Electric field: It is an especially simple type of electromagnetic field produced by an electric charge even when it is not moving (i.e., there is no electric current). The electric field exerts a force on other charges in its vicinity. Also, the moving charges additionally produce a magnetic field.

  4. Electric potential: It is the capacity of an electric field to do work on an electric charge. It is typically measured in volts.

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JEE FOUNDATION Electricity
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