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Electromagnetic Field Theory
A pure inductor when connected across 220 V, 50 Hz supply consumes 100 W. From the above statement it can be concluded that
the inductor is made of thin wire.
the above statement is false.
the inductor is non linear.
the inductor has ferrite core.
the inductor is made of thin wire.
the above statement is false.
the inductor is non linear.
the inductor has ferrite core.
Answer
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Related Question
Electromagnetic Field Theory
XEROX machine is working on
electrostatic effect.
heating effect of current.
peltier effect.
magnetic effect.
electrostatic effect.
heating effect of current.
peltier effect.
magnetic effect.
Answer
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Electromagnetic Field Theory
Unit of electric flux density is
weber / meter2.
farad / meter.
coulomb / meter2.
coulomb.
weber / meter2.
farad / meter.
coulomb / meter2.
coulomb.
Answer
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Electromagnetic Field Theory
The radiation pattern of loop antenna is
Semicircle
Cardoid or Limacon
Elliptical
Circle
Semicircle
Cardoid or Limacon
Elliptical
Circle
Answer
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Electromagnetic Field Theory
In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as
None of these
Loss coefficient
Transmission efficiency
Front to back ratio
None of these
Loss coefficient
Transmission efficiency
Front to back ratio
Answer
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Electromagnetic Field Theory
A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is
2 × 10-8.
2 × 106.
2 × 10-6.
2 × 108.
2 × 10-8.
2 × 106.
2 × 10-6.
2 × 108.
Answer
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