EASY
12th Odisha Board
IMPORTANT
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What do you mean by electrification? Discuss various ways of electrifying a body. How can you charge a conductor positively by induction?

Important Questions on Electrostatics

MEDIUM
12th Odisha Board
IMPORTANT
State Coulomb's law in electrostatics and hence define unit of charge in e.s.u and S.I. system.
MEDIUM
12th Odisha Board
IMPORTANT
State the principle of superposition in electrostatics. Obtain an expression for force on one charge due to all other charges present in its neighbourhood.
EASY
12th Odisha Board
IMPORTANT
Two identical metalic spheres of exactly equal masses are taken. One is given a positive charge Q coulomb and the other an equal negative charge, Their masses after charging are different.
EASY
12th Odisha Board
IMPORTANT
Coulomb's law holds good for all distances greater than distances of the order 10-15m.
EASY
12th Odisha Board
IMPORTANT
Force between two charges increases if a wooden slab is kept between them.
EASY
12th Odisha Board
IMPORTANT
A charge q1 exerts some force F1 on a second charge q2. If a third charge q3 is brought near, the force of q1 on q2 charges.
EASY
12th Odisha Board
IMPORTANT
A solid conducting sphere hold more charge than a hollow sphere of same radius.
EASY
12th Odisha Board
IMPORTANT
When the distance between two charged particles is halved, the force between them becomes four times.