EXAMIANS
A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by
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A sphere of radius with a uniform charge density ρv C/m3 shall have electric flux density at radius “r = a” equal to
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In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is
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A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is
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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 exits between the conductor and the ground. The maximum electric stress occur at
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In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will
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RF inductor are characterized by
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What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m
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Conductor is varying and field is fixed then emf will be induced. This principle is called
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In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be
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