Answer / abbas krishnagiri

in positive plate = oxygen at anode
in negative plate = hydrogen at cathode

color become + ve = dark chocolate brown
color become - ve = gray

Answer / madhan

its depends upon type of battery.....above answers refers to only lead-acid battery

when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers  

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why CRGO material used in transformer?

2 Answers   Honda, Yazaki,

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what should be the value of proper neutral earthing resistance?

3 Answers   ABC,

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how can we decide where we have to DYn11 or other vector group transformer

4 Answers   BSL, Knight Frank, Security Printing and Minting Corporation of India Limited,

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how did the testing of protection relays done through current injection

0 Answers   Bhel,

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how can i get elcctrical supervisor license & Certificate of competancy in gujarat? i have completed my B.E (Electrical) course from gujarat.

2 Answers   NTPC, Welspun,

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we are operationing 3NOs 800 Kva generators by singronyus.specialey evening time our panel trip. the panel showing generator earth fault

4 Answers   RRB,

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What is the difference between resistance grounding system and resistance earthing system?

0 Answers  

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what is the total power generation in india?

0 Answers   GUVNL, HAL,

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after syncnhronistion how generator speed controlled by grid

3 Answers  

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what is difference between start imitation and start interlock for 3 phase motor protection ?

2 Answers   OPS,

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what diferent amoung three phase supply?

1 Answers  

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