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A positive point charge +Q is fixed in space. A negative point charge -q of mass revolves around fixed charge in elliptical orbit. The fixed charge +Q is at one focus of the ellipse. The only force acting on negative charge is the electrostatic force due to positive charge. Then which of the following statement is true
18
Sep
A positive point charge +Q is fixed in space. A negative point charge -q of mass revolves around fixed charge in elliptical orbit. The fixed charge +Q is at one focus of the ellipse. The only force acting on negative charge is the electrostatic force due to positive charge. Then which of the following statement [...]
A negative charge Q is distributed uniformly in volume of a sphere is radius R and a point charge particle (may be negative or positive) is present on the surface of this sphere then variation of escape velocity (vs) of charge ‘q’ as a function of ‘q’ will be [ neglect gravitational interaction].
18
Sep
A negative charge Q is distributed uniformly in volume of a sphere is radius R and a point charge particle (may be negative or positive) is present on the surface of this sphere then variation of escape velocity (vs) of charge ‘q’ as a function of ‘q’ will be [ neglect gravitational interaction]. Three equal [...]
You are moving a negative charge q<0 at a small constant speed away from a uniformly charged non-conducting spherical shell on which resides a negative charge Q<0. The electrostatic, field of Q is E. Let U be the total energy of the system, Wa the work done by the force Fa you exert on q,WE the work done by the electrostatic force FE on q. Then, as q is being moved :
18
Sep
You are moving a negative charge q<0 at a small constant speed away from a uniformly charged non-conducting spherical shell on which resides a negative charge Q<0. The electrostatic, field of Q is E. Let U be the total energy of the system, Wa the work done by the force Fa you exert on q,WE [...]
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as q is being moved : ,
field of Q is E. Let U be the total energy of the system ,
Wa the work done by the force Fa you exert on q ,
WE the work done by the electrostatic force FE on q. Then ,
You are moving a negative charge q<0 at a small constant speed away from a uniformly charged non-conducting spherical shell on which resides a negative charge Q<0. The electrostatic ,
Three equal charges Q are placed at the vertices of an equilateral triangle. What should be the value of a charge that when placed at the centroid reduces the interaction energy of the system to zero.
18
Sep
Three equal charges Q are placed at the vertices of an equilateral triangle. What should be the value of a charge that when placed at the centroid reduces the interaction energy of the system to zero. Three equal charges Q are placed at the vertices of an equilateral triangle. What should be the value of [...]
Three charges +q, -q and +2q are placed at the vertices of a right angled triangle ( isosceles triangle ) as shown. The net electrostatic energy of the configuration is
18
Sep
Three charges +q, -q and +2q are placed at the vertices of a right angled triangle ( isosceles triangle ) as shown. The net electrostatic energy of the configuration is -q and +2q are placed at the vertices of a right angled triangle ( isosceles triangle ) as shown. The net electrostatic energy of the [...]
Four charges are rigidly fixed along the y – axis as shown. A positive charge approaches the system along the x- axis with initial speed just enough to cross the origin. Then its total energy at the origin is
18
Sep
Four charges are rigidly fixed along the y – axis as shown. A positive charge approaches the system along the x- axis with initial speed just enough to cross the origin. Then its total energy at the origin is A very large sphere having charge Q uniformly distributed on the surface is compressed uniformly till [...]
A point charge Q is placed at the centre of a spherical cavity of radius b carved inside a solid conducting sphere of radius a. Then total energy of the system is
18
Sep
A point charge Q is placed at the centre of a spherical cavity of radius b carved inside a solid conducting sphere of radius a. Then total energy of the system is A point charge Q is placed at the centre of a spherical cavity of radius b carved inside a solid conducting sphere of [...]
In the figure shown the electric potential energy of the system is ( q is at the centre of the conducting neutral spherical shell of inner radius a and outer radius b )
18
Sep
In the figure shown the electric potential energy of the system is ( q is at the centre of the conducting neutral spherical shell of inner radius a and outer radius b ) In the figure shown the electric potential energy of the system is ( q is at the centre of the conducting neutral [...]
A very large sphere having charge Q uniformly distributed on the surface is compressed uniformly till its radius reduces to R. The work done by the electric forces in this process is
18
Sep
A very large sphere having charge Q uniformly distributed on the surface is compressed uniformly till its radius reduces to R. The work done by the electric forces in this process is A very large sphere having charge Q uniformly distributed on the surface is compressed uniformly till its radius reduces to R. The work [...]
A charged particle of charge Q is held fixed and another charged particle of mass m and charge q (of the same sign) is released from a distance r. The impulse of the force exerted by the external agent on the fixed charge by the time distance between Q and q becomes 2r is:
18
Sep
A charged particle of charge Q is held fixed and another charged particle of mass m and charge q (of the same sign) is released from a distance r. The impulse of the force exerted by the external agent on the fixed charge by the time distance between Q and q becomes 2r is: There [...]