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Miss Mor 6 years, 7 months ago
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Mukan Jangra????? 6 years, 7 months ago
Mukan Jangra????? 6 years, 7 months ago
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Řøhăň Řąjpůť ✌️✊ 6 years, 7 months ago
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Sia ? 6 years, 7 months ago
Two co-axial cylindrical shells A and B of radii a and b are possessed by a cylindrical capacitor. Assume l be length of the cylindrical shell. Due to the introduction of +q charge on the inner cylindrical shell A, equal but opposite charge -q is induced on the inner surface of the outer cylindrical shell B. The induced charge +q on its outer surface will flow to earth if the shell B is earthed.

The capacitance of the cylindrical capacitor is given as follows if V is potential difference between the cylindrical shell A and B.
{tex}C = \frac{q}{V}{/tex}
By applying the Gaussian a theorem, we first need to find electric field E in the space between two shells to find out potential difference between the cylindrical shells A and B . Let a cylinder of radius r (such that b > r > a) and length l as the Gauss surface. Charge enclosed by the Gaussian surface is {tex}\lambda{/tex}1 and if {tex}\lambda{/tex} is charge per unit length on the shell A.
The electric flux will cross through only curved surface of the cylinder (Gauss surface). As the area of curved surface of cylinder is {tex}2\pi rl{/tex}, we have by Gaussian theorem.
{tex}\oint E \cdot ds = \frac{q}{{{\varepsilon _0}}}{/tex}
{tex}E \cdot 2\pi rl = \frac{{\lambda l}}{{{\varepsilon _0}}}{/tex}
{tex}E = \frac{\lambda }{{2\pi {\varepsilon _0}r}}{/tex}
The field lines are radial and normal to the axis of charged cylinder.
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Meghna Thapar 5 years, 9 months ago
Hardy-Weinberg Principle states that allele and genotype frequencies in a population will remain constant unless one or more factors cause the frequencies to change. Hardy-Weinberg formula. p² + 2pq + q² = 1 ; can be used to determine if a populations is in genetic equilibrium. P stands for. So, the factors that affect the Hardy Weinberg principle includes gene flow, genetic drift, mutation, genetic recombination and natural selection. The genetic variation of natural populations is constantly changing from genetic drift, mutation, migration, and natural and sexual selection. The Hardy-Weinberg principle gives scientists a mathematical baseline of a non-evolving population to which they can compare evolving populations.
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Kiran??? Gautam 6 years, 7 months ago
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