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Electromagnetic Field Theory

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.

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Electromagnetic Field Theory
The static electric field in a conductor is

Infinity
Zero
None of these
Unity

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Electromagnetic Field Theory
Which of the following impedance inversion is obtained?

Balun transformer
Short-circuited stub
A quarter wave line
A half wave line

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Electromagnetic Field Theory
What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m

 2.4 mm.
 8.4 mm.
 10 mm.
 4 mm.

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Electromagnetic Field Theory
Poyniting vector has the dimensions

 Watt × metre.
 Watt × metre2.
 Watts/metre2.
 Watt/metre.

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Electromagnetic Field Theory
Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH.

 225.
 145.
 250.
 150.

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MORE MCQ ON Electromagnetic Field Theory

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