Answer / anthony

copper has; higher conductivity than alunimium.
higher resistivity than alumimium
heavier weight than aluminium
costly than aluminium

Answer / g.rajasekaran

Copper has higher conductivity & lower resistivity than
aluminium

Answer / sandeep jangam

copper is having higher conductivity,cost,density.
aliminium is opposite of above

Answer / madhusudhana

Conductivity of Aluminium is 0.6 times that of copper and its tensile strength is 0.4 times that of of copper. Despite these drawbacks, Aluminium is widely used owing to its low cost.

Can anybody tell me what the breakdown voltage is for air and what it is for transformer oil please?

4 Answers   Pooja Cables,

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what is the current density of copper & alluminium.

0 Answers  

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What is 100% protection of generator? Why 100% is not used but 95% is generally used?

0 Answers  

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What is the acceptance value of leakage current in HI POT test

2 Answers   CPCL,

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hi frienda We have 250kva cater pillet dg set we are fasing one diffrent proublam in dg we are start dg set after one mint applying load around 450a load but dg was run 3 Or 4 mints after 3 mints dg was shuding down automatic how to face this proublam pls tel any budy

2 Answers  

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Waht will happened if reactive power increase in the line? waht about active power increase too?

3 Answers  

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voltage of a ckt is measured by volt meter having an input impedence camparable with the out put impedance of the ckt Eror caused is 1. Gross Error 2. Errors due to lloading effect

2 Answers   GATE,

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What is Biased Generator Differential Relay?

2 Answers  

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how to convert single phase supply to 3 phase or 3 phase to single..?

7 Answers   Wipro,

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Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?

0 Answers   CEB,

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Differenciate between circuit wiring and sub main wiring with illustrations

0 Answers   MU,

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what is the transformer rush current?

0 Answers  

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