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Electromagnetic Field Theory
Ohm’s law in point from field theory can be expressed as
J = σE.
R = ρ × ( l / A).
J = E / σ.
V = IR.
J = σE.
R = ρ × ( l / A).
J = E / σ.
V = IR.
Answer
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Related Question
Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on
all of above.
the number of their turns.
cross sectional area of their common core.
permeability of core.
all of above.
the number of their turns.
cross sectional area of their common core.
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Answer
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Electromagnetic Field Theory
A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation
y direction.
– z direction.
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Answer
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Electromagnetic Field Theory
A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be
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Answer
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Electromagnetic Field Theory
Which antenna is a wideband antenna?
Folded dipole
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Hertz antenna
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Answer
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Electromagnetic Field Theory
When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called
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Dispersion
Polarisation
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Scattering
Dispersion
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Answer
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