Electromagnetic-theory Questions Set 80:
Calculate the wavelength of a line with a phase constant of 7.24 units.
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The position around the antenna where the value of the radiation field is zero is called the
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Calculate the attenuation constant of a conductor with conductivity 200 S/m and operating at a frequency of 1 MHz in air.
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The inductance of a coaxial cable with inner radius a and outer radius b, at a distance d, is given by:
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Which of the following tests is suitable for testing two similar D.C. series motors of large capacity?
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The work done in a power transmission is 160 units, and the E and H components are 32 units and 64 units, respectively. Calculate the velocity of propagation.
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The power of the wave in a cylindrical waveguide is 2.4 units with an electric field of 12 units. Calculate the radius of the cylindrical waveguide.
Consider the medium to be air.
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In a D.C. generator, which of the following is NOT an effect of iron losses?
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Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1520 W/m².
(The intrinsic impedance of air, η, is 377 Ω.)
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If a series circuit has a resistance of 100 ohms, inductance of 0.5 H, and capacitance of 10 μF, and is connected to a 50 Hz AC supply, the impedance of the circuit will be:
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