Electromagnetic Field Theory
Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

 Equal joule heating occurs in both coils.
 An emf is induced in split coil.
 An emf is induced in both coils.
 Joule heating does not occur in each of the coils.

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Electromagnetic Field Theory
Which of the following statement regarding waveguides is incorrect?

At waveguide can be coupled to a coaxial cable
Waveguides can handle large power at UHF and microwaves
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves

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