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A charge particle is free to move in an electric field. It will travel
The potential at a point, due to a positive charge of at a distance of 9m, is
The quantity is known as:
A unit positive charge + qo placed anywhere in the vicinity of a positive point charge, experiences a repulsive force directed.
Capacitance in the presence of medium is given by:
If E be the electric intensity of an electrostatic field, then the electrostatic energy density is proportional to
The coulombs force between two point charges is F. If magnitude of each charge is doubled and distance between charges is halved, the forces between them becomes
Relative permittivity er is defined by the following relation.
A charge of 5C experiences a force of 5000N when it is kept in a uniform electric field. What is the potential difference between two points separated by a distance of 1cm
The quantity has the signiﬁcance of:
A capacitor charges and discharges:
Force between the plates of a charged parallel plate capacitor is attractive and its magnitude is
Capacity of a parallel plate capacitor can be increased by
The electric intensity at infinite distance from the point charge is
Value of r for air is;
A positive charge is moved from a low potential (a) to a high potential point (b) then the electric potential energy.
The force experience by unit positive charge placed at a point in an electric field is called:
Potential due to charge q at distance 1m is 5V, at distance 3m will be
Electric lines of force about a negative point charge are
Two opposite point charges each of magnitude 1C are separated by a distance of 2m. The electric potential at middle point between them is
12 J of work is to be done against an existing electric field to take a charge of 0.01 C from A to B. Find The potential difference between B and A.
What will be the electric potential energy of a 7 nC charge that is 2cm from a 20 nC charge?
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
The unit of έr
A conducting hollow sphere of radius 0.1 m is given a charge of 10 m C. The electric potential on the surface of sphere will be
One giga-volt =
The electric field intensity is the
S.I unit of electric intensity is NC-1or equivalent as
Two thin infinite parallel plates have uniform charge densities + s and -s . The electric field in the space between them is
Neutral zone in electric field of two similar charges is region where
Capacitance with air is 10F, if a dielectric of r = 100 is inserted then new capacitance
Presence of dielectric always
A capacitor stores energy in the form of:
When an RC circuit is connected across a battery amount of charge deposited on plates is …………times the equilibrium charge after one time constant.
The net charge on a capacitor (each plate having magnitude of charge q) is:
An object carrying 3C of charge is moved 10 cm from point A to point B by an electric field if VAB = 700 V, the work done by the electric field is:
Two point charges +3μC and +8μC repel each other with a force of 40N. If a charge of -5μC is added to each of them, then the force between them will become
A capacitor of capacitance C has charge Q and stored energy is W. If the charge is increase to 2Q. The stored energy will be
The increase in capacitance of a capacitor due to presence of dielectric is due to _____ dielectric.
If the medium between the charges is not free space, then electrostatic force will
The force between two neutrons placed at a distance of 1cm from each other is:
Surface charge density of the charge is
The relative permittivity of air is
A proton enters in a uniform electric field, the path of its motion will be;
In central region of a parallel plate capacitor the electric field lines are
gives the energy stored
The potential inside a hollow spherical conductor
Field free region is obtained
A pellet carrying a charge of 0.5C is accelerated through a Potential difference of 2000 volt, it attains a kinetic energy equal to:
The Coulomb force between two charges q1 = 2C and q2 is 2N, the distance between charges is 3m. What is the charge of q2?
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