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Electromagnetic Field Theory
For a linear electromagnetic circuit, which of the following statement is true?
Co-energy is zero.
Field energy is greater than the co-energy.
Field energy is lesser than the co-energy.
Field energy is equal to the co-energy.
Co-energy is zero.
Field energy is greater than the co-energy.
Field energy is lesser than the co-energy.
Field energy is equal to the co-energy.
Answer
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Related Question
Electromagnetic Field Theory
Which statement does not say that electrostatic field is conservative?
If is gradient of a scalar potential.
The potential difference between two points is zero.
If the curl of E is identically zero.
The work done in a closed path inside the fields is zero.
If is gradient of a scalar potential.
The potential difference between two points is zero.
If the curl of E is identically zero.
The work done in a closed path inside the fields is zero.
Answer
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Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.
10T.
2.5T.
5T.
0.5T.
10T.
2.5T.
5T.
0.5T.
Answer
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Electromagnetic Field Theory
In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to
Decrease in the value of reactance
No change in the reactance value
An increase in the value of reactance
No change in the impedance value
Decrease in the value of reactance
No change in the reactance value
An increase in the value of reactance
No change in the impedance value
Answer
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Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere
QR/(4π εo r3).
3 Qr/(4 π εo R3).
Qr/(4 π εo R3).
Q/(4 π εo r3).
QR/(4π εo r3).
3 Qr/(4 π εo R3).
Qr/(4 π εo R3).
Q/(4 π εo r3).
Answer
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Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field
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.
it is conservative.
it is solenoidal.
Answer
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