EASY
12th ICSE
IMPORTANT
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What is meant by 'elementary charge'? What is its value?

Important Questions on Electric Charges and Fields

EASY
12th ICSE
IMPORTANT
Which has more electrons, Fe or Fe+++Cl or Cl-?
EASY
12th ICSE
IMPORTANT
State the unit of electric permittivity in terms of SI units.
HARD
12th ICSE
IMPORTANT
Write the relation between relative permittivity εr and the absolute permittivity ε of a dielectric medium.
EASY
12th ICSE
IMPORTANT
Define 'dielectric constant' of a medium in terms of force between electric charges.
EASY
12th ICSE
IMPORTANT
What is the dimensional formula for 14π ε0?
EASY
12th ICSE
IMPORTANT
A,B and C are three charged bodies. If A and B repel each other and A attracts C, what is the nature of the force between B and C?
EASY
12th ICSE
IMPORTANT
Two large conducting spheres carrying charges q1 and q2 are brought close to each other. Is the electrostatic force between them exactly given by14πε0q1 q2r2 , where r is the distance between their centres?
EASY
12th ICSE
IMPORTANT
The charge on a conductor is -1.6 C. How electrons are in excess on it than normal state?