Answer / senthil

earth terminal is required to protect the human from schok
by increasing the area of the conductor resistence value of
conductor decreased. R=(ROW*L/A)

Answer / yk

the device must erthed first before is gets voltage thats y
earth pin is longer in plug.

Answer / arul

Thicker:in conducter area is high conductor resistense is
low so earth pin resistense less than two two pin.
deeper:first equipment will earthed next get the power
supply so earth pin is deeper.

Answer / swapnil borade

we know that resistance is inversely proportional to area, as area is large then resistance is small & length of earth pin is large because first pin connected is earth & last disconnected is also earth & this is for to discharge the current & to protect the human body.

Answer / n.ashok kumar

it is for convinence the head of the plug is thicker.suppose
the plug is not thicker,it same size of other(phase&neutral)
pin. sometimes we are all(if you are in tention)rotate the
plug and fix to the socket.it make electric shock on
appliance body .because earth wire connected to the
appliance body.

Answer / mahesh kumar singh

For decreasing the resistance of wire sothat it can produce
less heat & protects the personal from shock. Leakage
current will pass faster and the instrument will be saved.

Answer / dhayalan

Earth wire is required in home.because high and low voltage
protection....and it is save to use non technical
person....

Answer / suresh

every time earth is required to keep the system withstand in
high voltages& currents ,,,, so to protect the system from
high voltages it must be at high ratings .......

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

0 Answers   NTPC,

We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 Answers  

if a 3 point starter is not available, how can a dc motor be started?

3 Answers   Accenture, BIT, Techno Solutions,

sir, Is their any measuring unit of knoking? please explian?

0 Answers   Kirloskar,

Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?

2 Answers   Aramco,

CAN ANY ONE EXPLAIN THE KNEE VOLTAGE OF THE CT?

3 Answers  

why is control bus bi-directional?

0 Answers  

What happened to installed high capacity conductor for smaller current rating?

1 Answers  

Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

0 Answers   OPS,

can u please tell me how VFD(variable frequency) drive is used as a energy saver....?

12 Answers   Essar, Oracle,

HOW COULD A SINGLE PHASE INDUCTION MOTOR ROTATE IN OPPOSITE DIRECTION???

3 Answers  

How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?

0 Answers   OCL,