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Physics 1 Marks Question

Electrostatics · Rajasthan Board (RBSE) STD 12 Science (Rajasthan - English Medium). 3 questions.

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Question 11 Mark
What do you mean by capacity of conductor ?
Answer
The capacity of a conductor is defined as the ratio between the charge of the conductor to its potential, that is,
$C=\frac{q}{V}$
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Question 21 Mark
What is the principal of conservation of charge ?
Answer
The principle of conservation of charge states that the net charge of an isolated system remains constant during any physical process, e.g. two charge objects marking contacting and separating.
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Question 31 Mark
A Gaussian surface contains three charges (-q), (+2q) and (-q). Evaluate net electric flux through the surface.
Answer
In Gaussion surface,
$Qnet=-q-q+2q=0$
Thus
$\phi=\frac{0}{\in_{0}}=0$
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