Answer / a.rafeeq raja

As Leakage current need to flow through the Earth Wire
the resisitance should be as low compared to that of the
phase and neutral wires.Besides,The resistance of the
conductor is inversely proportional to the cross sectional
area of the conductor .Hence bigger cross sectonal area
reduces the resistance and provides a easy path for the
current flow.So the Earth Pin is always bigger than the
other two pins in a 3pin plug.

Answer / rakesh

as we know that R=p*l/a

resistance of the
conductor is inversely proportional to the cross sectional
area of the conductor .Hence bigger cross sectonal area
reduces the resistance and provides a easy path for the
current flow.So the Earth Pin is always bigger than the
other two pins in a 3pin plug.

Answer / m.srinivas manoj

when a fault occurs a large amount of current is drawn from
earth wire hence more thickness is required to avoid
insulation breakdown

Answer / ranjith

bigger dia of the pin gives larger contact area with socket
clips which is requard to handle falt corrent. heigher
length is to ensure first contact and last brack while
incerting or removing the plug from the socket.the height
diferance is ensured is the socket std by meens of H dim.

Answer / prashant

when ever we talk about fault current. it always means a heavy current. fault current always needs a path to be grounded. since it is large so it obviously needs conductor having low resistance. since if resistance is high then on passing current through it will produce heat by formula (I^2R). again by seeing formula of resistance
R=P*l/a
increasing the area will reduce the resistance and hence reducing heat energy.
that is why earth wire is kept thick...

Answer / rk hari

the pin gives larger contact area with socket clips which is requard to handle falt corrent.so the socket std by meens of H dim..

what is the difference between electrical degree n mechanical degree?

3 Answers   IGCAR,

3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

0 Answers  

What is the use of choke in tube light?

5 Answers  

What is the funstion of buscoplure in LT panel? which propouse using the buscoplre

2 Answers  

can we increase our frequency rate in INDIA?

4 Answers  

what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system

2 Answers  

why neutral can not used in three phase motor connection?

1 Answers   HSL,

what is pole slip ?

4 Answers   NTPC,

a 3 phase slip ring induction motor is wound for 4 poles on stator and 6 poles on rotor; when 3 phase balanced voltage source at 50 hz is applied to motor it will run at a)1500rpm b)1000rpm c)750 rpm d)zero rpm

13 Answers   Essar, PSPCL, PSTCL,

Which capacitor is used in ceiling fans ?

1 Answers  

what is encoder & its use?

1 Answers   ACC,

if a motor has 1500rpm then what will its HP?

3 Answers   Willdale,