Answer / k.prakashchandra

There may be a solenoid in a relay but there can not be a
relay in a solenoid.Solenoid executes a command and relay
is a commander.

Answer / k

A relay is an electronic switch controlled by a magnetic field. I solenoid is a mechanical switch controlled by electromagnetism.

Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

1 Answers   Hindalco,

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Which machine u will prefer to use at where flameble gases are comming out & why?

1 Answers   NTPC,

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How to increase home power factor? Can we connect capacitor directly? How to select capacity of capacitor?

5 Answers  

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How you give clearance to a spare feeder.

1 Answers   KSEB, L&T, Siemens,

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Why star delta starter is preferred with induction motor?

1 Answers  

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WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?

1 Answers  

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why effective resistance should be more than static resistance in transmission line?

1 Answers  

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what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

1 Answers  

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what is meant by substation?

5 Answers  

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diff between UPS and inverter?

2 Answers  

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why induction generators are used in wind mills.why cant synchronous generators b used??

2 Answers  

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what will happen if i connect or change line with phase terminal

1 Answers  

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