EXAMIANS
A sphere of 20 cm radius contains electrical charge of density 2/(r sinθ) c/m3. What is the total charge contained within the sphere?
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A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at
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The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is
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Which of the following impedance inversion is obtained?
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What is the unit of magnetic charge
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A Yagi antenna has a driven antenna
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The magnetic vector potential due to a single conductor carrying current is
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In H-plane metal plate lens the travelling wave front is
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Conductor is constant and field is varying then emf will be induced. This principle is called
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An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor.
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