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  OHM’S LAW OHMS LAW:-- Ohms law provides relationship between the potential difference and current flowing through the metallic conductor in a circuit.   Ohms law states that , at a constant temperature , there is relationship between the current carrying conductor (I) , flowing through the metallic wire or conductor   and potential difference (V) is crossing through its terminal. Now, in an electric circuit, the potential difference (V) , across the ends of the metallic wire is directly proportional to the current flowing through it. This is called ohms law. Mathematically , this law can be expressed as follows:--   V      ∝       I Or , I    ∝     V V/I     =      constant V/I     = R Here R is the resistant. SI unit of R is      (Ω) (Ω) :-- Its represented by Greek letter. And also called as omega   According to ohms law, ...

  ELECTRIC CURRENT   ELECTRICITY In Modern Society , Electricity has a important role. These form of energy is mainly used in homes, hospitals, industries , factories, schools, lab, and so on. Just as AIR Current and WATER current , we can say that , flow of electric charge through a electric conductor like metallic wire , there is an electric current in the conductor. The torch illuminates light ,   when   its switched ON. The reason behind is due to electric circuit. The torch is with cell or battery. The cell or battery carry flows of charge or an electric current. When cells or battery is connected in proper order , then its provides the flow of charge electric current . and when the switched ON , then they produce a conducting link between the cells and the bulbs. And bulbs gets glows. And when the switched is off , the circuit gets broken   and light gets turned off.   ELECTRIC CIRCUIT:-- A Continuous   and closed path of an ele...