Q1PhysicsUnit 11: Electrostatics
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Hard Electrostatics MCQs for JEE
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Hard Electrostatics MCQs train multi-concept problem solving — attempt after mastering easy and medium sets (150+ on Goodmarks).
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6+ important formulas for Electrostatics
Subtopics in Electrostatics
- Electric charges: conservation of charge, Coulomb's law forces between two point charges, forces between multiple charges, superposition principle and continuous charge distribution
- Electric field: electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in a uniform electric field
- Electric flux, Gauss's law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell
- Electric potential and its calculation for a point charge, electric dipole and system of charges
- Potential difference, equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field
- Conductors and insulators, dielectrics and electric polarization
- Capacitors and capacitance, the combination of capacitors in series and parallel
- Capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor
View Electrostatics formula sheet — 6+ JEE formulas
Free sample questions
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Q2PhysicsUnit 11: Electrostatics
The electric field at a distance from
the centre of a charged conducting spherical shell of radius is . The electric field at a distance from the centre of the sphere is :
Q3PhysicsUnit 11: Electrostatics
A particle with a charge of 3 coulombs is taken from a point at a potential of 50 V to another point at a potential of Calculate the work done.
Q4PhysicsUnit 11: Electrostatics
The voltage required to balance an oil drop carrying 10 electrons between the plates of a capacitor which are apart, is (Given mass of the oil drop=
Q5PhysicsUnit 11: Electrostatics
The top of the atmosphere is about 400
kV with respect to the surface of the earth, corresponding to an electric field
that decreases with altitude. Near the
surface of the earth, the field is about
Still, we do not get an electric shock as we step out of our house into the open house, because (assume the house to
be a steel cage so that there is no field inside)
Q6PhysicsUnit 11: Electrostatics
A charge of is kept at a distance
of from a charge of . Find the two points where the potential is
zero
Q7PhysicsUnit 11: Electrostatics
The electric potential due to a dipole at a point on the perpendicular bisector of its length is :
Q8PhysicsUnit 11: Electrostatics
A thick shell with inner radius and
outer radius has a uniform charge
density It has a spherical cavity of radius as shown in the figure. the
electric field at the centre of the cavity is
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