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qUESTIONS

A point charge q produces an electric field of magnitude 2N/C^-1 at a point distance 0.25 m from it. What is the value of charge?

In nature, the electric charge of any system is always equal to

A charge Q is divided in two parts q and Q – q. What is value of maximum force between them?

Three equal charges are placed at the three corners of a square. If the force between q1 and q2 is F12 and that between q1 and q3 is F13 then the ratio of magnitudes F12/F13 is

Two small identical metal balls are equally charged and placed at a fixed distance away from each other. They experience the electrostatic force ‘F’. A similar uncharged ball after touching one of them is placed at the middle point between the two balls. The force experienced by this ball is

Two point charges + e end + 4e are kept at a distance d units apart. Third point charge + q is placed between the two charges at a distance x units from charge +e so as to be in equilibrium. The value of x is

When the 10^19 electrons are removed from a neutral metal plate, the electric charge on it is

Two equal point charges exert a force ‘F’ on each other when they are placed distance ‘d’ apart in air. When they are placed ‘D’ distance apart in a medium of dielectric constant ‘K’, they exert the same force. The distance ‘D’ is equal to

A point charge produces an electric field of magnitude 4 N/C^-1 at a point distance 0.25 m from it. What is the value of charge?

The distance between two point charges is increased by 20%. The force of interaction between them

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