Answer / raj

no...............

Answer / s.arul

this is my idea.
Bucholtz relay is a gas operated relay.
1. less amount of gas will come, the relay give the alarm
signal. 2. more amount of gas will come, the relay trip the
machine(so don"t use battery in bucholtz relay).

As per is what is distance between two chemical type earth pit

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explain LED lamps?

1 Answers  

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