Physics question and answers for January 29, 2024
- Q A conducting sphere of radius R is given a charge q and a point charge Q is placed at a distance d from its centre as shown in figure Electric...
- Q 13 Consider two spheres of the same radius R having uniformly distributed volume charge density p of same magnitude and opposite sign e and e The spheres overlap such that...
- Q for r R d Decreases as r increases for r R and for r R 25 Two parallel infinite line charges with linear charge densities C m and C m...
- Q 1 5 A small ball of mass m and charge q tied with a string of length 1 rotating in a vertical circle under gravity and a uniform horizontal electric...
- Q A positively charged sphere A is brought close without touching to a neutral sphere B The far side of sphere B is touched with a grounded wire What is the...
- Q A metal sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius The inner sphere is charged to a potential of 3 esu when the...
- Q 1 6 If uniform electric field E Ei 2Eoj where E is a constant exists in a region of space and at 0 0 the electric potential Vis zero then...
- Q A particle of charge q and mass m is suspended from a point on the wall by a rigid massless rod of length a 3 m as shown Above the...
- Q The electric field intensity at the centre of a uniformly charged hemispherical shell is E Now two portions of the hemisphere are cut from either side and remaining portion is...
- Q negligible mass with two small balls each of mass mand electric charge Q attached to its ends The rod can rotate in the horizontal plane about L a fixed vertical...
- Q Consider a system of n charges 9 92 with position vectors 7 72 73 relative some origin O Deduce the expression for th net electric field E at a point...
- Q at B What is its direction q 100 Two positively charged particles each of mass 1 7 x 10 27 kg and carrying a charge of 1 6x10 19 Care...
- Q Charge respectively which are at a distance 2L apart C is the mid point between A and B The work done in moving a charge Q along the sernicircle CRD...
- Q 5 The given diagram shows two semi infinite line of charges having equal in magnitude linear charge density but with opposite sign The electric field at any point on x...
- Q Four equal charges q are placed at centre of a conducting hollow sphere If they are displaced 1 5 cr from centre the change in flux will be Radius of...
- Q Note that the electric field E due to Q though defined operationally in terms of some test charge q is independent of q This is because F is proportional to...
- Q Note that volume of conductor and hence weight required is less in case of 3 phase 3 wire system Example 7 6 A sub station supplies power at 11 kV...
- Q 6 If is the linear charge density of wire bent in form of semicircular shape as shown Then electric field intensity at the centre will be y axis 1 XX...
- Q R two parallel conducting rails as shown in the figure X X X X B R Two resistors R and R are connected across the ends of the rails There...
- Q A spherical conductor of diameter 20 distributed uniformly What is the magnitude of electric field at a p cm from the centre of the sphere O 3 2 10 N...
- Q 2 A block of mass m having charge q is hung by a spring of spring constant k in a vertical electrostatics field E The string extension in equilibrium will...
- Q An electric dipole is placed in an external electric field as shown in figure which varies with x in m as E E xi where Eg 10 NC m Force...
- Q A conducting balloon of the radius a is charged to potential V and held at a large height above the earth ensures that charge distribution on the surface of the...
- Q Two charges of 25 x 10 coulomb and 25 x 10 coulomb are placed 6 m apart Find the electric field intensity ratio at points 4 m from the centre...
- Q O 45 A dipole with dipole moment Pis aligned with uniform external electric field E The work done by an external agent to rotate the dipole by 180 so that...
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