Answer / vijay

when you connect a supply of 220 V AC/DC to a battery of 20 V DC the first thing that there would a big flash and battery will blast, if the 220 V side as reliable fuse / breaker it will trip. Now if it is AC then the effect would be more severe because the electro chemistry of the battery is subjected to reversal at a very fast rate.

60 watt bulb and 1500watt iron which device has more resistance & why

5 Answers   RMSI,

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opkinson's test

0 Answers   Bhel,

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What is the function of the serge absorber?

5 Answers  

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how to calculate the earthing conductor & no. of earth pits required

3 Answers  

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What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

0 Answers   SRM,

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what is power ratio between star & delta connection of 3 phase induction motor

1 Answers  

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what about the power of wattmeter at starting and loding?

0 Answers   TATA,

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Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency

1 Answers  

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What is battery Amphere-hour? How the battery back up time period is calculated?

2 Answers  

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what is safety measures of alternator.

10 Answers   HP, MNC,

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what purpose to use excaiter in DG.?

0 Answers   TATA,

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Is it required to use 2 nos of body earthings to any machine though if we use TP with E supply is provided to Machine?

2 Answers   HAL,

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