Answer Posted / parthibanselvaraj
Phase is the wire that carries electrical current from
mains to the appliance via the switch.
neutral is the wire that completes the electrical circuit
from the switch back to the mains.
Ground is the wire that will act as a short circuit from
the body of the instrument to the earth ground.
now if the switch is open the current path can not be
completed and hence the appliance does not work.
the moment switch is pressed the path is completed and so
the appliance works properly. If some one touches the body
normally there should not be any problem.
If mains supply leaks to the body of the appliance it needs
to be immediately and automatically sent to the ground
bypassing the human load which may come into contact .
Earth line serves exactly this purpose. So if you touch you
will get very small leakage current through your body
because the entire current goes through ground wire. you
are safe.
Is This Answer Correct ? | 56 Yes | 6 No |
Post New Answer View All Answers
can you give me example of igbt drive circuit... i still not under stand how it can be design with certain equation using mathlab program...
what is the difference between pthread and taskSpawn
please send the latest sample question paper for the hal online test for electronics stream
Can some body explain me please..mobile to mobile call flow explaination..
What is different between EPABX and PBX
How to get KWH,Voltage & current datas from 2KVA hybrid inverter to my computer
Explain what is meant by saying at what current is transistor biased?
What is multiplexing?
Ripple as referred to in a rectifier circuit.
i want to know fire safety factory purpose .. does fire mauual call point requires hooter or mcp has inbuilt siren...???
Why collector is made larger than emitter and base?
Draw the circuit diagram of 1φ capacitor commutated current source inverter and explain its operation with equivalent circuits for different modes and necessary wave forms?
define conversion time.
WHY IGBT IS CALLED MINORITY CARRIER DEVICE?
What are the main components of AMF panel. Is it required to use ATS in LT panel if DG is used as stand by supply? Please send any single line diagram showing AMF & LT panel etc., if possible please send to sreenu_207 @ yahoo.co.in