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CBSE Notes 2011-2012 » XII-Physics

Electrostatics

Two electric field lines never cross each other. Why ? [AI 2005]

Short answer question

Two electric field lines never cross each other.
Why ? [AI 2005]

The distance of the field point, on the equatorial plane of a small electric dipole, is halved. By w...

Short answer question

The distance of the field point, on the equatorial
plane of a small electric dipole, is halved. By
what factor will the electric field, due to the
dipole, change ? [Delhi 2004C]

Write the condition under which the potential difference between the terminals of a battery and its ...

Short answer question

Write the condition under which the potential
difference between the terminals of a battery
and its emf is equal.

Two charges ql and qy separated by a small distance, satisfy the equation ql + q2 = 0. What does it ...

Short answer question

Two charges ql and qy separated by a small
distance, satisfy the equation ql + q2 = 0. What
does it tell us about the charges ?
[Foreign 2003]

Two point charges q1 and q2 are placed close to each other. What is the nature of force between the ...

Short answer question

Two point charges q1 and q2 are placed close
to each other. What is the nature of force
between the charges when ql q2< 0 ?
[Foreign 2003]

Which physical quantity has unit NC <sup>-1</sup> ? It is a vector or scalar quantity ?

Short answer question

Which physical quantity has unit NC -1 ? It is a
vector or scalar quantity ?

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