In a incandescent bulb, if the glass is punctured, and then power is supplied, the tungsten filament blows up with a flash.Why?

2 Answers  

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Why is the neutral point of a star connected winding of a motor not grounded?

1 Answers  

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2 hp motar how many amps taken please show me the formula

4 Answers   Cable Wireless,

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capacitor is load free component but why ampare meter shows the current when the capacitor bank breaker close?

4 Answers   OPS,

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why voltage swells and dips in transmission line?

2 Answers  

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What are methods to avoid the inrush current at the time of starting of power transformer ?

8 Answers   Wipro,

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plz tell me in detail about c.t. and p.t. ?

3 Answers   Reliance, SCL,

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whats the application of voltage regulation? and whats the voltage regulation's device?

0 Answers  

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3 ph motor connected in star delta starter. when we start the motor it run in star but when in is going in delta it trips the main incoming supply. why?

3 Answers   Bajaj Hindusthan,

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How to covert the ac to dc and how to control the dc output?

3 Answers   ABB,

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tell me the various standerd of CT ratio

1 Answers   ICA,

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In constant power region of 3-phase IM torque-speed characteristics, if frequency increases voltage A does not alter B decreases C increases D none of above

1 Answers  

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