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Why dont we get shock while testing for voltage with a line tester? How the bulb inside the tester glows while testing with tester coz we are totaly isolated from earth or we are not giving close path for the current to flow?

3 Answers  

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what is the voltage present in the telephone?

10 Answers   Infosys,

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Why does the adjacent zone of protection overlap?

0 Answers  

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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What is SFU ?

4 Answers  

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What is plc and how to do preventive maintenance

1 Answers  

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wat is the role of reactive power in power generation?why we have maintain it.

3 Answers  

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why the transformer is not operates on two phase?

1 Answers   APGenco, Atkins, FFBL,

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WHAT IS MEANT BY vfd(VARIABLE FREQUENCY DRIVE )HOW CAN WE APPLY VFD TO MOTOR ? I WANT FULL DETAIL IF ANYBODY KNOW THE WEBSITE FOR THAT PLZ SEND .THANK U

2 Answers  

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In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 Answers  

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Will MCB tripped off, if there is an electric shock to Human body?

9 Answers  

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we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

1 Answers   ABC,

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