Recent questions tagged iron

1 answer 9 views

Which is the best conductor: silver, carbon, or iron?

asked Jul 1 by Shimroz123
1 answer 42 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 58 views

An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be  (1) unaffected (2) decreased (3) increased (4) either decreased or increased depending on the direction of the DC field

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 12 views

The iron alloy, ALNICO is mainly used to make ________ A) Temporary magnets B) Permanent magnets C) Transmission lines D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 198 views
1 answer 66 views

In DC motor iron losses are occurred in?

asked Mar 26, 2018 in DC motor by Shimroz123
1 answer 37 views

A ferrite core has less eddy current loss than an iron core because?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 19 views

In AC. circuits, laminated iron is invariably used in order to?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 31 views

When secondary of a current transformer is open-circuited its iron core will be?

asked Mar 19, 2018 in Transformer by Shimroz123
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