Answer Posted / dean atwa

(D) Silver;

then copper, gold, and aluminum in that order.

Silver pound for pound is the best conductor of electricity
and has the lowest resistance.

Copper is most commonly used since it is very inexpensive
and is only slightly less of a conductor than silver.

Gold is used mainly because of it's reliability and ability
to not tarnish over time though it is the most expensive of
the four.

Aluminum is the fourth best conductor and is used primarily
in housing wiring for inexpensive purposes. The only
problem with aluminum is since it is such a light metal, it
shows unreliable over time and tarnishes easier as well.

Can any body mail me previous year question papers of RRB- civil engineering for post of sectional engineer

2470

---

plz send me the RRB recruitment information for mechanical engineers and also website .

2301

---

iam a engineering graduate, i want to know the exam pattern for railway engineer jobs

1902

---

Dear sir/Madam my question is, could you get me a sample paper of RRB aptitude test of last three year

2073

---

please send rrb goods guard all subject question with answers.

2103

---

Hi . Please send me Model papers for RRB-Assistant station master to prati.748@gmail.com

2134

---

sir, i need rrb chennai SE ELECTRICAL last 5 year question papers .PLZ GUIDE me to collect the question paper .kindly send it to my mail id nandhu.svr@gmail.com

3220

---

plz send me the question papers of RRB for any post

2043

---

sir/medam, pls send me last 5 year J.E.(electrical) for rrb ajmer

2109

---

plz sir railway group d qstion paper oractice set

2166

---

i want the study material for the post of je(electronics) plz send me study material

2162

---

sir, iam sampath i want the syllabus & model papers of locopilot exam for diploma in mechanical. when the hall tickets will be provided, if we donot get whom we have to contact.please mail me to sampath_72000@yahoo.com . thaking you sampath.n

2219

---

sir, iam preparing for locopilot exams ITI(ELEC) Please can you mail me the model paper&syllabus for exam thanking you shankar

2142

---

sir i applied for loco pilot, goods guard, assistant station master and electrical section engineer posts.can you sent me the old question papers and syllabus of the examination to the email jerinjosephm@gmail.com

2139

---

sir,i will attend the rrb exam on assitant loco pilot .please send the model technical test questions. please 12th + three year diploma (electronics & communication) is eligible for Assistant LOco pilot in RRB

2288

---