Answer / jkgjk

When we insert 3-pin plug in the socket, first longer and
thiker pin touch the plug, which is connected through earth.
This is for human protection from earth fault.

Answer / manju

thicker pin is connected through earth,as v know that as the area of connection (conductor)increses the resistance decrease
R=$L/A. incase of earth fault, current easily flow to earth through thicker earth pin. tis will protect human from shock.

Answer / rajesh tanwar

The earth pin in the socket is longer so that the phase and
nuetral get disconnected first and earth is disconnected
very last to gave a sufficient protection.

Answer / praful nandankar

earth pin is used in socket to prevent the person from
shock.earth pin is thickeras u know that the thickness is
indirectly proportional to resistance.Hence excessive
current flows through the earth pin during abnormal
conditions.

Answer / shivendra

we know that R=p(L/A).So as the area of cross section increases the resistance decreases AND the current follows the minimum resistance path.So in case of fault current excessive current will flow via earth pin thereby saving the human from shock.

what types battery chargers are there?wanted with details.

3 Answers   SCS,

---

what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

0 Answers  

---

What iz main protection of mediuum voltage motors and what iz the standard IR voltage of 6.6 and 11kv motors.

1 Answers   GE,

---

Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

1 Answers   ACC,

---

How to calculate cable size in HT AND LT

0 Answers   Apollo, JSKE,

---

---

Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.

0 Answers  

---

In Energy meter How many rotation Equal to one unit.

3 Answers  

---

A jet of fluid strikes a plate What was the force required to counter it?

0 Answers  

---

Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

0 Answers  

---

Can we use 1.1x 2 split air-conditioning at a same time in 2kw power loadar

1 Answers  

---

How does flights get the neutral(grounding)

1 Answers  

---

how to calculation increase power factor for single phase

0 Answers  

---