ECE :: Materials and Components
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From a homogeneous and isotropic dielectric material of dielectric constant ∈r, a small volume element is taken out creating a cavity. The field can be kept homogeneous if Di. (i.e., electric flux density inside the cavity) and D0 (i.e., electric flux density outside the cavity) are such that
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An electrolytic capacitor can be used for
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Figure shows a composite capacitor. If CA, CB, CC are the capacitances of capacitors A, B, C, the overall capacitance C is
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As regards ferromagnetic Curie temperature Qf and paramagnetic curie temperature θ
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If there are no permanent dipoles in a dielectric material, the dielectric constant is independent of temperature.
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Assertion (A): Magnetic susceptibility of copper is -0.5 x 10-5.
Reason (R): Copper is diamagnetic material.
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An electron shell corresponding to principal quantum number n can contain a maximum of
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A sheet of bakelite is inserted between the plates of an air capacitor. The capacitance will
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