Answer / ehtesham ali khan

The problem in the TRF receiver are solved in this receiver.
it converts RF signals to a lower frequency IF signal.
The radio & Tv receivers works on th principle.

No variations in bandwidth.
high sensitivity and selectivity
high adjacent channel rejection.

what are advantage and disadvantage of hvdc transmission . please tell us technic of hvdc technology

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How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

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what is single phase motor?

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what is the meaning of bus bar, in electrical panels.

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In Transmission System if the potential difference at the two end of line are same then is the transmission of power will continue ? if yes then how.

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why t/f are rated in kva. is it conserned with p.f.

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Office , overtime and television how big this stage?

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The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

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If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?

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Why power factor should not be in leading (capacitive) mode of any load.

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why a tester wont shock while testing the power in house

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why we r using alternator instead of d.c generator and induction generator

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