Physics question and answers for February 03, 2024
- Q 1 An electron travels a distance of 0 10 m perpendicula to an electric field of intensity 3200 V m enterin with a velocity 4 x 107 m s What...
- Q 44 Consider a non spherical conductor shown in the 4 figure which is given a certain amount of positive charge The charge distributes itself on the surface such that the...
- Q 2 these charges are placed at a distance R There will be maximum repulsion between them when 1 Q Q q Q q 2Q Q 3 3 2 Q 3...
- Q 1 93 Three charges q q and q are placed as shown in the figure The x component of the force on q is proportional to 93 92 6 93...
- Q A charged shell of radius R carries a total charge Q Given as the flux of electric field through a closed cylindrical surface of height h radius r and with...
- Q A point charge q is kept at a distance of a on the central axis through the figure pa perpendicular to the plane of shaded region Find the electric flux...
- Q If the magnetic field in a plane electromagnetic way is given by B 3 10 sin 1 6x10x 48 100t j then what will be expression for electric field 1...
- Q has a tiny hole cut into its surface Show that the electric field 200 vector in the outward normal direction and o is the surface charge density near the hole...
- Q volume of a solid hemisphere of radius R Then the potential at center O of the hemisphere is Aakash Educational Services Limited Regd Office Aakas 1 4 1 3Q 2R...
- Q The figure shows two infinite lines of charge A and B in the plane of paper Both lines are uniformly charged Linear charge density of A is while that of...
- Q A particle of charge Q is executing uniform circular motion about the origin with an angular velocity The particle is at R 0 at t 0 Electric potential at the...
- Q Electric field in the given figure is directed along X direction and given by E 5Ax 2B where E is in NC and x is in metre A and B...
- Q X and Y are large plates close to each other Each face has an area A X is given a charge Q Y is without any charge Points A B...
- Q A charge 10 C placed on the equatorial line of the fixed electric dipole at a distance r that is much larger than the length of dipole It experiences a...
- Q Three charges lie on the x axis each at distance a apart from the nearest one The charges are numbered from 1 to 3 moving from left to right A...
- Q a A hoop of radius r and mass m is rolling without slipping with velocity v towards a step of height b r on a horizontal surface Assume that the...
- Q A point charge placed on the axis of a uniformly charged large non conducting disc experiences a force F due to the disc If the charge density on the disc...
- Q A positively charged sphere of radius o carries a volume charge density p figure A spherical cavity of radius is then scooped out and left empty is shown Magnitude of...
- Q 1 a Consider a uniformly charged sphere of radius R centred at origin and having a charge density p Let a small spherical region with radius b R is removed...
- Q An oil drop of radius 2 mm with a density 3 g mathonmathongo cm3 is held stationary under a constant electric field 3 55 x 10 V m in the...
- Q A hollow non conducting shell has a uniform charge density 2x It is found that electrostatic push of one half of shell on the other half is IN If density...
- Q A non conducting rod of negligible thickness and length carries a positive charge Q which is uniformly distributed on it A particle carrying a charge Qo is kept at a...
- Q NTEGER TYPE QUESTIONS 2 A pyramid with horizontal square base 6 00 m on each side and a height of 4 00 m is placed in a vertical electric field...
- Q 11 Two point charges 10 C and 10 C are separated by a distance of 40 cm in air Calculate the electrostatic potential energy of the system assuming zero potential...
- Q 90 J of work is done in moving a charge of 3 C from one terminal of the battery another What is the potential difference of the battery Ans 30...
- Q It requires 1 mJ of work of move two identical positive charge q from infinity so that they are separated by distance a How much work is required to move...
- Q 7 Two small metallic spheres each of mass m are suspended together with strings of length and placed together When a quantum of charge q is transferred to each the...
- Q Two concentric conducting spherical shells of radii R and 2R having charges A and B and potential 2v and 3v respectively Now shell B is earthed by closing switch S...
- Q An infinitely long solid cylinder of radius R with uniform volume charge density p has a spherical cavity of radius with its centre on the axis of the cylinder as...
- Q 72 In the series combination of n cells each cell having emfe and internal resistance r If three cells are wrongly connected then total emf and internal resistance of this...
- Q c d 14 2 A 82 A battery an open switch and a resistor are connected in series as shown in figure Consider the following three statements concerning the circuit...
- Q SolveLancer Test At time t 0 a small particle of mass 2 x 10 5 kg comes in the effect of E t Eo sin wt Charge on N particle...
- Q 4 30 A square in the x y plane in free space has a point charge of Q at corner a 2 a 2 the same at corner a 2...
- Q A uniformly charged annular disc has inner radius 30 cm outer radius 40 cm and charge density of 10 o in Sl unit Electric potential at a point on the...
- Q 7 Four point charges are placed at the four corners of a square in the two ways i and ii shown below Will the i electric field ii Electric potential...
- Q Electric Dipole 5 An electric dipole of length 10 cm having charges 6 10 3 C placed at 30 with respect to a uniform electric field experience a torque of...
- Q 1 Two identical metallic spheres having unequal opposite charges are placed at a distance of 0 50 m apart in air After bringing them in contact with each other they...
- Q An infinitely long line of charge has linear density of charge equal to 1 0 nC m Points A and B are at a distance of 2 m and 3...
- Q An uniform electric field E is created between two parallel charged plates as shown in figure An elec tron enters the field symmetrically between the plates with a speed v...
- Q Two spherical conductors of radii 4 m and 5 m are charged to the same potential If o and o be the respective values of the surface density of charge...
- Q 23 A charged gold leaf electroscope has its leaves apart by certain amount having enclosed air When the electroscope is subjected to X rays then the leaves 1 Further dilate...
- Q that of larger sphel b the charge density of smaller sphere is more than that of larger sphere c both spheres may have same charge density d none of these...
- Q A ring carrying current lies in x z plane as shown A short magnetic dipole with dipole moment directed along x axis is fixed at origin If the ring is...
- Q strong The cheat along aving ect to que of dipole c d 30 0 44 Two charged conducting spheres of radia and are connected to each other by a wire...
- Q b a 13 For a system of two dipoles P and P2 as shown in the figure both are at origin and perpendicular to each other along x and y...
- Q An electric dipole consists of two opposite charges each of magnitude 0 1 C separated by 40 mm The dipole is aligned at 30 with the direction of uniform electric...
- Q ut the h the the 31 The work done in carrying a charge q once round circle of radius a with a charge Q at its centre is b a...
- Q Consider four point charges placed on the vertices of a square of side x as shown Electric dipole moment of the system is Q X 2Q X Q xx X...
- Q An oil drop carrying charge Q is held in equilibrium by a potential difference of 600V between the horizonta plates In order to hold another drop of twice the radius...
- Q Two small objects each having a charge of Q are located on the y axis a distance a and a from the origin Another small object having a charge q...
- Q When identical point charges are placed at the vertices of a cube of edge length a each of them experiences a net force of magnitude F Now these charges are...
- Q The short dipoles each of dipole moment p are placed at origin The dipole moment of one dipole is along x axis while that of other is along y axis...
- Q 7 Derive an expression to determine torque for an electric dipole with its sp cases 8 Two point charges q and 2q are placed at the vertices B and C...
- Q A non conducting semicircular disc as shown in figure has a uniform surface charge density o The ratio of electric field to electric potential at the centre of the disc...
- Q QTwo point charges q and q are held fixed at d 0 and d 0 respectively of a x y coordinate system Then A B C the electric field E...
- Q 20 Four equal charges q each are placed at four corners of a square of side a each Work done in carrying a charge q from its centre to infinity...
- Q a Er b E c Exr d Exp 100 An early model for an atom considered it to have a positively charged point nucleus of charge Ze surrounded by a...
- Q entre pole pole P A cube of a metal is given a positive charge Q For the above system which of the following statements is true 1 Electric potential at...
- Q Best The electric potential at a point in free space due to a charge Q coulomb is Qx 10 V The electric fiel at that point is a 12mQx 10...
- Q AME Q x 10 V m 8 Two points A and B are located in diametrically opposite directions of a point charge of 2 Ca distances 2 m and 1...
- Q 6 The electric field intensity at a point P due to point charge q kept at point Q is 24 NC and the electric potential at point P due to...
- Q 4 The potential at a point due to a charge of 5 x 107 C located 10 cm away is a 3 5 10 V c 4 5 x 10...
- Q Given the potential V r sin 0 cos 1 Find the electric flux density D at 2 7 3 7 3 2 Find the charge within the sphere r 2...
- Q We want to design a spherical vacuum capacitor with a given radius a for outer sphere which will be able to store the greatest amount of electrical energy subject to...
- Q PART B 3 x 4 12 Marks a List the properties of Electric lines of forces and state why two lines of forces never intersect b Draw the figure depicting...
- Q coulomb s law 89 A point charge 20 C is at a distance 6 cm directly above the centre of a square of side 12 cm as shown is figure...
- Q 95 Two large thin metal plates are parallel and close to each other On their inner faces the plates have surface charge densities of opposite signs and magnitude 27 x...
- Q 12 93 Two infinite plane parallel sheets separated by a distance d have equal and opposite uniform charge densities o Electric field at a point between the sheets is 0...
- Q a 7 3 x 10 C c 7 3 x 10 6 C b 3 7 x 10 6C d 3 7 x 10 C 78 A metallic spherical shell...
- Q c zero d depends on the location of the point 94 Two large thin metal plates are parallel and close to each other On their inner faces the plates have...
- Q An electric dipole consists of charges 2 0 x 10 C separated by a distance of 2 0 x 10 m It is placed 2 0 cm near a long...
- Q ous nts P c A B p C q d A r B q C p B LC P 77 A uniformly charged conducting sphere of 4 4 m diameter...
- Q c 6 7 x 10 6 7 x 91 Two parallel infinite line charges and are placed with a separation distance R in free space The net electric field exactly...
- Q MEG Objective NCERT P 74 In a certain region of space electric field is the 2 direction throughout The magnitude electric field is however not constant but incre uniformly along...
- Q A spherical metallic conductor has a spherical cavity A positive charge is placed inside the cavity at its centre Another positive charge is placed outside it The conductor is initially...
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