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Question

Name four different effects of electric current?


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Solution

Electric current:

  1. Electric Current may be defined as the rate of flow of electrons in a conductor.
  2. SI Unit of electric current is Ampere.
  3. The circuit must include an energy source like a battery or a cell that produces voltage.
  4. Without voltage, electrons move randomly and are undirected, and the current cannot flow.
  5. Voltage creates pressure on the electrons which channelizes them to flow in a single direction.

Effects of electric current:

When current flows in a circuit it exhibits various effects. The main effects are given below:

  1. Production of the magnetic field due to a current flowing through a coil.
  2. When current flows through a conducting solution, chemical reactions take place in the solution. This effect is called the chemical effect of electric current.
  3. When an electric current is passed through a conductor, the conductor becomes hot after some time and produces heat. This is due to the conversion of some electric energy passing through the conductor into heat energy. This is called the heating effect of current.
  4. When an electric current touches or flows through the body, it gives an electric shock. This is also an effect of electric current.
  5. The charging of an electric conductor is another effect of electric current.

Thus, there are many effects of current, some of which are listed above.


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