Why is a small bulb kept in the tester?
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Hi there,
It is so Because tester is a small device and it buld should glow on less energy therefore small bulb is used in tester,it is just a indicator which shows the presence of electric current in a circuit or in a socket.
It is so Because tester is a small device and it buld should glow on less energy therefore small bulb is used in tester,it is just a indicator which shows the presence of electric current in a circuit or in a socket.
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