Q1PhysicsUnit 11: Electrostatics
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Syllabus context
Part of Electrostatics in JEE Main Physics.
- 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
Free sample questions
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Q2PhysicsUnit 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
Q3PhysicsUnit 11: Electrostatics
An electric dipole is placed in a non
uniform electric field increasing along the
ve direction of - axis. The dipole
moves along and rotates
Q4PhysicsUnit 11: Electrostatics
A ball of radius R carries a positive charge whose volume charge density depends only on the distance r from the ball's centre as: where
is constant. Assume as the
permittivity of the ball.
Then the magnitude of the electric field as a function of the distance r outside
the ball is given by :
Q5PhysicsUnit 11: Electrostatics
A free electron in an electric field
Q6PhysicsUnit 11: Electrostatics
Electric intensity due to an electric dipole varies with distance as where 'n"
is
Q7PhysicsUnit 11: Electrostatics
There exists a non-uniform electric field
along -axis as shown in the figure
below. The field increases at a uniform
rate along +ve x-axis. A dipole is placed inside the field as shown.Which one of
the following is correct for the dipole?
Q8PhysicsUnit 11: Electrostatics
A red LED emits light at uniformly around it. The amplitude of the electric filed of the light at a
distance of form the diode is:
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Popular questions in 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
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