Electromagnetic-theory Questions Set 18:
Which of the following materials is diamagnetic?
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What is the half power beam-width in the E-plane of a Hertz dipole antenna? (Angle in degrees)
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A wave has a transmission coefficient of 0.45. Find the reflection coefficient of the wave.
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Which of the following circuit elements stores energy in the electromagnetic field?
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When cathode rays enter a magnetic field at an oblique angle, what is the nature of the path they follow?
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If two identical heaters, each rated at 1000 W and 220 V, are connected in parallel to a 220 V supply, then the total power consumed is:
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The radiation resistance of an antenna is 50 Ohms, equivalent (loss) resistance is 10 Ohms, and directive gain is 6. The power gain of the antenna will be?
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A 10 m long wire of resistance 20 Ω is connected in series with a battery of EMF 3 V and a resistance of 10 Ω. The potential gradient along the wire in V/m is:
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Choose the option that accurately describes the presented statement:
"For a general vector field, both the scalar potential and the vector potential are required to describe the vector field."
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An electron is projected along the direction of a uniform electric field and a uniform magnetic field that are acting in the same direction in a certain region. What will happen to the velocity of the electron?
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