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Solve the question in photo
Asked by Vidushi412 | 04 Apr, 2019, 11:50: AM
Expert Answer
Let us assume a uniformly charged sphere of radius R and total charge Q. Charge density ρ = Q/(4πR3)
if a charge -q is moving from a surface point towards centre, workdone W is given by,
W = ............................(1)
workdone as given by eqn.(1) will be equal to maximum kinetic energy (1/2)kR2 at equilibrium position O, where k is force constant
and it is given by k = mω2 , where m is mass of charge and ω is angular frequency
( maximum kinetic energy at equilibrium position for a SHM is (1/2)kA2 , where A is amplitude.
Here we have assumed maximum amplitude equals Radius of sphere)
Answered by Thiyagarajan K | 04 Apr, 2019, 12:57: PM
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