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Question -

Zubeda made an electric circuit using a cell holder shown in the following Fig., a switch and a bulb. When she put the switch in the ‘ON’ position, the bulb did not glow. Help Zubeda in identifying the possible defects in the circuit.



Answer -

These may be the reasons by which bulb will not glow.
(i) The cell may be connected in improper way. Check out that the positive terminal of one cell is connected to the negative terminal of the other or not.
(ii) The junctions of the wire may be loose. Check them again.
(iii) Check the condition of the bulb. Replace it. if it is fused.

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