If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

4 Answers   NTPC,

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Why battery rooms painted with dark colour

1 Answers   BAL, MSETCL Maharashtra State Electricity Transmission Co Ltd, Polycab,

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What is applied voltage for meggering a 6600V HT cable

2 Answers   Sail,

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if v r considering a 4000/1A ct,if v inject 1 amps in secondary core wat happens?(consider as 2 core ct,each for metering and protection)

1 Answers  

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How to increase the kvah ?

1 Answers   IGP,

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If 440 V supply has given at the secondary winding of transformer at that time if we apply 11 KV at primery then what will happen???????

4 Answers  

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how does an energy meter works?

4 Answers  

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Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?

0 Answers   ABB,

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one 60KVA UPS how can full load current tell me us formulas

1 Answers   Wipro,

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how can we design robots

0 Answers   Maruti Suzuki,

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How to connect surge arrester with equipment?

1 Answers   Godrej,

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What is the material used for the core of a high freiquency transformer?

3 Answers   Videocon,

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