Electromagnetic-theory Questions Set 32:
In a klystron amplifier, the input cavity is called the
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What is the equivalent value of one neper in decibels (dB)?
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In a lossy dielectric, the phase difference between the electric field E and the magnetic field H is:
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What property of electromagnetic waves indicates their transverse nature?
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What is the primary source of energy in a magnetic material?
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Find the Lorentz force on a conductor of length 3 m carrying a current of 2 A in a magnetic field with flux density of 16 units.
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Which of the following losses in a D.C. generator varies significantly with the load current?
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Based on the region of maximum power radiation/receiving, antennas are classified as
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An antenna with a directivity of 90 degrees is operating at a wavelength of 2 meters. Calculate the maximum effective aperture of the antenna.
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Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1250 W/m².
(The intrinsic impedance of air, η, is 377 Ω.)
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