Q1- What is the purpose of using an electric switch in the circuit?
Q2- How does electricity flow in a closed electric circuit?
Q3- Draw a neat diagram to show the internal structure of a torch. Explain the role of a reflector in the torch.
Q4- Draw a closed circuit to show the flow of current and flow of electrons.
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Ans 1: A switch is used to complete or break an electric circuit to use an electric appliance according our convenience. Some electrical gadgets that have switches built into them are electric lamps, cooler, washing machines, table fan, TV, radio, etc.
Ans 2: A closed circuit of conductive material provides a path for electrons to continuously flow. The charges are propelled by an electric field. We need a source of electric potential (voltage), which pushes electrons from a point of low potential energy to higher potential energy.
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