ECE :: Materials and Components
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Which capacitor-store higher amount of energy?
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Above ferroelectric curie temperature, spontaneous polarization in ferroelectric materials becomes stronger.
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In paramagnetic materials
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Assertion (A): Atomic number of sodium is 11.
Reason (R): Sodium has a body centred cubic lattice.
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The conductivity of intrinsic semiconductor is given by
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The core of a coil has a length of 10 cm. The self inductance is 8 mH. If the core length is doubled, all other quantities remaining the same, the self inductance will be
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The minority carrier life time and diffusion constant in a semiconducting material are 100 μs and 100 cm2/s respectively. The diffusion length of carriers is
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Assertion (A): Electronic and Ionic polarization in a polyatomic gas are independent of temperature.
Reason (R): The orientation polarization is independent of temperature.
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Two materials having temperature coefficients of 0.004 and 0.0004 respectively are joined in series. The overall temperature coefficient is likely to be
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