Which of the following is the best conductor of electricity ?
(a) Copper
(b) Aluminium
(c) Gold
(d) Silver
- 53 Answers
- 97145 Views
- AIEEE, CCA, College School Exams Tests, Cooper, IAF, Reddy Labs, Signetsoft, SSC, UPPCL, I also Faced
- E-Mail Answers
Answer Posted / bhunesh
(D) Silver
because
1) Very Low Resistivity 15.9 nΩ m.
2) Silver and Gold are the only metals, being found in a pure form from the earth.
3) silver is a good conductor of electricity like many other metals because the atoms that make up a piece of silver will have many free electrons that can be moved by applying voltage across it. These moving electrons are known as an electric current and they are necessary for making electrical and electronic equipment work correctly.
metals ρ (Low Resistivity in nΩ m)
Silver 15.9
copper 17.1
gold 22.1
aluminum26.5
tungsten52.8
zinc 59
brass 64
nickel 69.3
lithium 92.8
iron 96.1
platinum105
palladium105.4
tin (0 ℃)115
chromium126
tantalum131
solder 150
steel, plain180
lead 208
uranium (0 ℃) 280
titanium (0 ℃) 390
steel, stainless720
mercury (0 ℃) 941
plutonium 1414
manganese 1440
nichrome 1500
| Is This Answer Correct ? | 25 Yes | 3 No |
Post New Answer View All Answers
Sir, I am Diploma in Mechanical Engineer holder and I have been applied RRB-Chennai now. I need RRB chennai JE mechanical last 5 year question papers Plz send me on this email id gunacpt@gmail.com
Please send me signal section engineer written question papers
hi..all..1st congrts to who cleared the sbi exam.. i hav a doubt about reporate,crr,slr,bank rate... if anyone know plz share ur ansrs with us.. All the best to all...
sir how can i get the solved papers and model papers for rrb exam for technician grad 2 sihnal?plz help me
sir,plz send me a old papers for section engineer. thanking you
I REQUIRES SANITATION EXAMS PEPER OF RRB . PLZ SEND ME AT MY EMAIL ID BGGOD84@YAHOO.CO.IN
about staff nursing
Can i have model question papers of RRB(Section Er-Signals) kindly help me out.i want to take this exam seriously.
i need syllabus and previous year question papers for rrb section engineer in s&t department
Dear sir/Madam my question is, could you get me a sample paper of RRB aptitude test of last three year
yyyyyyyyyy
please send me previous 5years exam question paper of assistant station master to my email id- biplob_tsk@yahoo.co.in
please sent a rrb assistant station master previous question paper?
dear sir/madam, please send me rrb chennai previous 5 years question and answer paper for electrical engineer...
ashwani this side, i want rrb section enge & j.e exams previous 10 to 15 year question paper, tech & non tec section. ples any any one have question papers ples send.
