Electromagnetic-theory Questions Set 7:
Which instrument can be used to obtain polarized light?
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A lossless line of characteristic impedance Z₀ is terminated in a pure reactance of -jZ₀. The VSWR is:
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What is the value of the H component if the power of a wave in air is 424.125 units?
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The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is
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The armature torque of the D.C. shunt motor is proportional to
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The cross product of the electric (E) and magnetic (H) components of an electromagnetic (EM) wave is 5+7j. Find the power of the EM wave.
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The length of a given cylindrical wire is increased by 100%, and due to the consequent decrease in diameter, the change in the resistance of the wire will be:
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A three-point starter is considered suitable for which type of DC motors?
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Due to Earth's magnetic field, charged cosmic ray particles
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When does a magnetic field exert a force on a charged particle?
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