Answer / nafees

1. Relay is an electrical device which is used to hold the power supply or we can say that its switching device.
its working principle is electromagnetic.

Answer / raj

Relay is used to connect or disconnect the power to a circuit without interfering the circuit supply or with an external supply

Earth connection is used to ground(Nutralise) the leakage voltage to protect the operator form the shock. if operator get shock the earth connection is defined as not working.

Answer / thiagarajan.e

Relay is electrical device,and it's prime function is a aprotection device,and it can be used for connect and dis connect purpose.

who invented c language?

14 Answers   Assurgent,

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0 Answers   Bosch,

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What is a repeater?

0 Answers  

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what do you meam by analog instruments? give one example.

2 Answers   Siemens,

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Define why half-wave rectifiers are generally not used in dc power supply?

0 Answers  

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Hall effect can be used to measure

1 Answers  

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. When a inductive coil connected to a 200 V, 50Hz ac supply with 10A current flowing through it dissipates 1000 watts then which of the following will have least value in ohms a.) Resistance b.) Reactance c.) Impedance d.) None

3 Answers   BSNL,

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4 Answers   Airtel,

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3. What is the command to unlock the BTS

0 Answers   BEL, NSN,

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pls what type of questions asked in interview of appsc polytechnic govt lecturers mail to kram.thulasi@gmail.com

0 Answers   APPSC,

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what is the reason of RDI alarm in microwave link?

0 Answers   TATA,

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4. What is the command from BSC to check the alarm in BTS

0 Answers   Accenture,

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