Recent questions tagged copper

1 answer 12 views

Which is a semiconductor: copper, silicon, or neon?

asked Jul 1 by Shimroz123
1 answer 3 views

Compare copper and aluminium.

asked Sep 4, 2018 by Shimroz123
1 answer 52 views

A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 41 views

At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is :  (A) 7000 W (B) 6000 W (C) 8000 W (D) 4000 W

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 21 views

Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be?

asked Mar 25, 2018 in Basic concepts by Shimroz123
0 answers 22 views

Current velocity through a copper conductor is

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 86 views

How do magnets and copper wire make electricity?

asked Mar 10, 2018 in Electric Power Generation by Quiz
1 answer 31 views

explain skin effect in copper interconnects. what are the various ways of reducing this effect?

asked Dec 13, 2017 in VLSI Design by Quiz
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