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The ratio of specific charge of a proton and an alfa-particle is:
(1) 2 : 1
(2) 1 : 2
(3) 1 : 4
(4) 1 : 1
Ans:(1) 2 : 1
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A charge of 111 pC is uniformly distributed throughout the volume of an isolated sphere of diameter 40 cm. Calculate the electric field at the following distances from the centre o
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Description about mauls law
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