Q1PhysicsUnit 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=
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Important Questions: Capacitors and capacitance, the combination of capacitors in series and parallel for JEE
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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
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Q2PhysicsUnit 11: Electrostatics
Consider a huge charge reservoir at potential volts. A spherical
capacitor is brought in
contact with the charge reservoir and
then removed.
Afterwards, another spherical capacitor
is brought in contact with
and removed. This process is
repeated many times. Assume that potential of reservoir does not change during this exercise. Then the charge in
on after a very long time is :
Q3PhysicsUnit 11: Electrostatics
If we increase the distance between two
plates of the capacitor, the capacitance will
Q4PhysicsUnit 11: Electrostatics
The effective capacitance between
and will be
Q5PhysicsUnit 11: Electrostatics
Assertion
A capacitor can be given only a limited
quantity of charge
Reason
A capacitor is an arrangement which can store sufficient quantity of charge
Q6PhysicsUnit 11: Electrostatics
A parallel plate capacitor is charged
and then the battery is disconnected, When the plates of the capacitor are brought closer, then This question has multiple correct options
Q7PhysicsUnit 11: Electrostatics
The inductor in a LC oscillation has a
maximum potential difference of
and maximum energy of J. Find
the value of capacitor in F in LC circuit.
Q8PhysicsUnit 11: Electrostatics
toppr ०६
Q Type your question
In tigure. I nen the Key Is pressed to
complete the circuit. Finally the net
charge on upper plate and net charge the circuit. Finally the net charge on
upper plate and net charge on lower
plate of capacitor is positive.
Reason : In a parallel plate capacitor
both plates always carry equal and
opposite charge.
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Popular questions in Capacitors and capacitance, the combination of capacitors in series and parallel
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