When an electric current pass through a conducting solution, there is a change in color of the solution. What does it indicate?

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ALP CBT 2 Electrician Previous Paper: Held on 23 Jan 2019 Shift 1
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  1. Heating effect of current
  2. Chemical effect of current
  3. Magnetic effect of current
  4. The lighting effect of current

Answer (Detailed Solution Below)

Option 2 : Chemical effect of current
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The passage of electric current through a conducting solution causes a chemical reaction. As a result, the change in colour of the solution occurs. this causes the chemical effect of current.

When an electric current is passed through a conductor, the conductor becomes hot after some time and produce heat. This happens due to the conversion of some electric energy passing through the conductor into heat energy. This effect of electric current is called the heating effect of current.

When an electric current flow through a conductor, magnetic field is set up all along the length of the conductor. The magnetic lines of force are in the form of concentric circles around the conductor. This effect of electric current is called the magnetic effect of current.

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