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Electromagnetic Field Theory
Which of following is true for a purely inductive circuit ?
Actual power of the circuit is zero.
Any capacitance even if present in the circuit will not be charged.
Apparent power of the circuit is zero.
Reactive power of the circuit is zero.
Actual power of the circuit is zero.
Any capacitance even if present in the circuit will not be charged.
Apparent power of the circuit is zero.
Reactive power of the circuit is zero.
Answer
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Related Question
Electromagnetic Field Theory
The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes
None of above.
0.
100 μ v/m.
- 100 μ v/m.
None of above.
0.
100 μ v/m.
- 100 μ v/m.
Answer
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Electromagnetic Field Theory
A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is
0.
2 ux.
– 2 ux.
– uy.
0.
2 ux.
– 2 ux.
– uy.
Answer
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Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field
it is conservative.
it is solenoidal.
it has no sink or sources.
magnetic flux lines are always closed.
it is conservative.
it is solenoidal.
it has no sink or sources.
magnetic flux lines are always closed.
Answer
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Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to
Current of the antenna
Antenna height
Wave frequency
Distance of the point from the antenna
Current of the antenna
Antenna height
Wave frequency
Distance of the point from the antenna
Answer
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Electromagnetic Field Theory
The ability of charged bodies to exert force on one another is attributed to the existence of
protons.
electrons.
neutrons.
electric field.
protons.
electrons.
neutrons.
electric field.
Answer
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