Answer / amin

my dear pencil is just like conductor with insulator around
it.
while semiconductor is not a conducting material but
conducts under conditions when proper arrangment is done.

Answer / satya dev ( knight frank)

Semiconductor is acting as insulator during the noraml
temp/ atomsphere/voltage, but on applying potential diff.
across its terminal it behaves like conductor. it has
negetive co- efficient of temperature.

Germenium, silicon are good semiconductor

Answer / abcde

Semiconductor is more like an insulator since they both
have a bandgap. The only difference is the bandgap of
semiconductor is smaller than an insulator. At low
temperature, intrinsic(undoped) semiconductor is an
insulator. A semiconduct's resistivity decrease with
increasing temperature, while a metal's resitivity increase
with increasing temperature.

Answer / sudharsanan

Semiconductor: Semiconductor, means it is neither a
conductor nor an insulator. but when u give some voltage to
it, It says that "say me as an conductor" i.e.
semiconductor. When u don't apply any voltage to it. that
time u call me as an insulator. So, one word it is
semiconductor.

Answer / javed

Semiconductor is a substrance which is used to transmit the current under specific conditions eg. CD,DUD

what is auxilliary transformer??

3 Answers   Bhel,

why effective resistance should be more than static resistance in transmission line?

0 Answers  

if we going for high voltage usages what are the considering factors, why those factors are effected.... please give me an answer related motor factors like wnidnig, frame, temp etc

1 Answers   ABB,

We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.

1 Answers   ARDE,

how to calculate voltage drop and followed by cable calculation?is there avail in formula?

0 Answers  

What is working Priniciple of TVSS ????

1 Answers   Emerson,

Why charcoal and salt add in earthing pit.

6 Answers   Garware, NTPC, Sterling Wilson,

what is the min and max dc voltage for a dc system (110vdc)

1 Answers   ASD Lab,

Earth bits close or open. Which is correct

0 Answers  

If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?

3 Answers  

Why in medium voltage system(3.3kv to 33kv, neutral is earthed with either resistance, reactance or neutral grounding resistance?

4 Answers   Essar,

what is the working of hydrent system.

2 Answers