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Electromagnetic Field Theory
Which of the following statement regarding waveguides is incorrect?
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
At waveguide can be coupled to a coaxial cable
Waveguides can handle large power at UHF and microwaves
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
At waveguide can be coupled to a coaxial cable
Waveguides can handle large power at UHF and microwaves
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
Answer
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Related Question
Electromagnetic Field Theory
The Kirchhoff’s current law is implict in expression
Curl of H = J + (δ D)/(δ t).
Surface integral of (j.ds) = 0.
Divergence of B = 0.
Divergence of D = ρv.
Curl of H = J + (δ D)/(δ t).
Surface integral of (j.ds) = 0.
Divergence of B = 0.
Divergence of D = ρv.
Answer
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Electromagnetic Field Theory
An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be
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3.5
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Electromagnetic Field Theory
Two straight parallel conductors carry equal currents in opposite direction. The force between them is
attractive.
repulsive.
zero.
none of above.
attractive.
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none of above.
Answer
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Electromagnetic Field Theory
If the static magnetic flux density is B, then
Curl of B = 0.
Curl of B = J.
Divergence of B = J.
Divergence of B = 0.
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Answer
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Electromagnetic Field Theory
A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m
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144 μN.
244 μN.
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Answer
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