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.

Short circuit voltage of a transformer mainly depend on A ohmic resistance of primary B ohmic resistance of secondary C magnitude of leakage flux D cross sectional area of core

1 Answers  

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which type of capacitors using in single phase motors

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in transformer which grade oil will use?

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Define peak overshoot.

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what is a lightning arrester???

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Why alternators are designed at 0.8 pf lag?

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what is diffrenance between ACB and Isolator

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arcing is due to only capacitance or it is due to both inductance and capacitance? explanation.

2 Answers  

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