Physics question and answers for February 15, 2024
- Q A point charge q moves from point P to point S along the path PQRS figure in a uniform electric field E pointing parallel to the positive direction of the...
- Q A particle of charge q mass m moves in a circle of radius r around an infinitely long line charge of linear charge density Then time 1 4780 period will...
- Q 25 The electric field at 2R from the centre of a uniformly charged non conducting sphere of radius R is E The electric field at a distance from the centre...
- Q Three point charges are lying as shown Surface shown is imaginary gaussian surface then find correct option q zero 9 9 1 Field at each point of gaussian surface is...
- Q a 56 The electric field intensity Espe shown arrangement are in the ratio R 1 1 2 2 9 a P 3q 2r Q Fig Hollow concentric shell 2 2...
- Q 13 Two equal point charges A and B are R distance apart A third point charge placed on the perpendicular bisector at a distance d from the centre will experience...
- Q A ring of radius R has charge Q distributed uniformly over it A charge q is placed at the centre of the ring such that electric field becomes zero at...
- Q 2 Four electric charges A B C D are arranged as shown The electric force will be least between charges A y 2 C 4 C D A A and...
- Q The spatial distribution of the electric field due to two charges A and B is shown in figure Which one of the following statements is correct 1 A is ve...
- Q 4 160 V If potential at a point P 1 1 1 is given by the 35 relation V x y 2z then calculate the electric field at P 1...
- Q Two point charges Q Q are fixed at x 0 and x a Assuming that field strength is positive in the direction coinciding with the positive direction of x E...
- Q A charge of luC is divided into two parts such that their charges are in the ratio of 2 3 These two charges are kept at a distance 1 m...
- Q Two equal positive charges Q are fixed at points a 0 and a 0 on the x axis An opposite charge q at rest is released from point 0 a...
- Q 3 20 cos e 5 The pulleys and strings shown in the figure are smoot and of negligible mass For the system to remain in librium the angle 0 should...
- Q EQ 4 Zero Suppose that a planet has a surface charge 34 density of 1 electron m given radius of the planet is 8850 km then calculate potential of the...
- Q ring of radius R carries a charge q unimly distributed over it A long thin wire carrying charge per unit length is held along its axis with one end coinciding...
- Q J The grid each square of 1 mx 1 m represents a region in space containing a uniform electric field If potentials at point O A B C D E...
- Q Two uniformly charged non conducting hemispherical shells each having uniform charge density and radius R form a complete sphere not stuck together and surround a concentric spherical conducting shell of...
- Q 22 Atlipule hay ng dipole norment p is placed in front of a solid uncharged conducting sphere as shown in the diagram The nel potential at paint A lying on...
- Q Figure shows a charge array known as an electric quadrupole For a point on the axis of quadrupole obtain the dependence of potential on r for r a 1 and...
- Q a Deduce the expression for the torque acting on a dipole of dipole moment in the presence of a uniform electric field E b Consider two hollow concentric spheres S...
- Q ph sphere has radius r If the A hollow charged me potential difference between its surface and a point at a distance 3r from the centre is V then the...
- Q A 2 0 m long metallic rod is rotated with an angular velocity of 200 rad s about an axis normal to the rod passing through its one end A...
- Q An infinite large uniform charged non conducting sheet having surface charge density a is placed in an external uniform electric field E Figures shows electric field lines near the sheet...
- Q 28 Two resistances 102 and 152 are connected in series A cell of e m f 1 5V of negligible resis tance is connected between their ends Then a current...
- Q Inside a spherical uncharged conducting shell centered at O a point charge qis kept such that OA d The radii of the inner and outer surfaces of the shell are...
- Q Every resistance of the circuit given in Fig 2 81 has been expressed in the unit of ohm If the resistance of the volt meter is 90 what will be...
- Q Two large charged plane sheets of charge densities to and 20 Cm 2 are arranged vertically with a separation of d between them Deduce an expressions for the electric field...
- Q A charge q 2 2 uC is placed at the point P shown below What is the force on g in N Assume the positive direction is to the right...
- Q the potential difference between two pol Work Potential difference x charge 0 x charge 0 scalar or vector and why Q 18 Derive an expression for electric potential due to...
- Q 131 In a potentiometer whose wire resistance is 1022 the potential fall per cm is V volts To reduce it to V 4 V cm the resistance that must be...
- Q 22 A positively charged ball hangs from a long silk thread Electric field at a certain point at the same horizontal level of ball due to this charge is E...
- Q 5 Variation of electrostatic potential along the x direction is shown in figure The correct statement about electric field is 1 x component at point B is maximum 2 x...
- Q A circular coil carrying current of single turn of radius R and mass 1 kg is hanging by two ideal strings as shown in figure When a constant mag field...
- Q A simple bar magnet hangs from a string as in figure A uniform magnetic field B directed horizontally to the right is then established Which of the pictures in figure...
- Q Projectile Above a Charged Sheet From the surface of a large uniformly charged sheet of surface density Coul m2 an electron is projected at an angle 45 from the surface...
- Q The acceleration of an electron due to the attraction between the electron and a proton when they are 1 6 A apart is m 9x10 31 kg e 1 6...
- Q A particle q 8 mC m 6 g has a velocity of 43 m s when it enters a region where the electric field has a constant magnitude of 99...
- Q ever cross each other Reasoning Electric field at a point supe rimpose to give on resultant electric fiel d a both are true and reason is correct e xplanation of...
- Q The negative charge q2 is fixed while positive charge q as well as the conducting sphere S is free to move If the system is released from rest 92 9...
- Q A rod AB of length L is non uniformly charged with a linear charge density which depends on distance x from end A of rod as Cx Coul m Find...
- Q An infinite large non conducting plane of surface charge density o has circular aperture of certain radius curved out from it The electric field at a point which is at...
- Q A conducting dise of conductivity o has radius a and thickness A uniform magnet field B is applied in a direction perpendicular to the plane of the disc If the...
- Q A solid nonconducting sphere radius 12 cm has a charge of uniform density 30 nC m distributed throughout its volume Determine the magnitude of the electric field 30 cm from...
- Q hollow conducting sphere of inner radius R an outer radius 2R is given a charge Q as shown in th figure then the 2R CR 1 Potential at A and...
- Q Three particles each having a charge Q are placed on the three vertices A B C of a square of side a The electric field at the centre of the...
- Q A test charge is moved from lower potential point a higher potential point The potential energy of test charge will a remain the same b increase c decrease d become...
- Q It is said that any charge given to a conductor comes to its surface Should all the protons come to the surface Should all the electrons come to the surface...
- Q Consider two charged metallic spheres S and S of radii R and R respectively The electric fields E on S and E on S on their surfaces are such that...
- Q 6 Quantisation of charge implies 1 Point Charge does not exist Charge exists on particles There is a minimum permissible magnitude of charge Charge can t be created 7 When...
- Q 2 SI unit of permittivity of free space is 1 Point Farad Weber C2N 1 m 2 C2N 1 m 1 3 Electric field lines provide information about 1 Point...
- Q A particle of mass m and charge q is projected in a region where an electric field given by E Ei exists with a velocity vo from the origin at...
- Q Find the electric field at point P on the perpendicular bisector of a uniformly charged thin wire of length 2L carrying a charge Q The distance of the point P...
- Q Consider three equipotential surfaces of field produced by q point charge A small point charge q is taken slowly along two paths from A to B and A to C...
- Q 3 Two spheres each of radius R and carrying equal and opposite uniform charge densities are placed such that they overlap as shown in Fig 3 Find the electric field...
- Q The spatial distribution of the electric field lines due to charges A B is shown in figure Which one of the following statements is correct Question Type Single Correct Type...
- Q ams ments zor Potential at the centers of two very thin spherical shells A and B of equal radii and equal masses are VA and VB respectively Mass of shell...
- Q Animal cells have a membrane that separates the interior of the cell from the outside environment Typically an electric potential difference exists between the inner and outer surfaces of the...
- Q A carbon resistance has value R 2 4 5 ther sequence of colour code is 1 Red Yellow Silver Golden 2 Red Orange Silver Golden 3 Red Yellow Golden Golden...
- Q Two point charges are kept at a certain distance from one another The graph represents the variation of the potential along the straight line connecting the two charges 1 q...
- Q D A dipole is placed at origin of coordinate system shown in figure then the electric field at p P 0 y is 1 4 3 P 0 y up...
- Q Assertion The electric flux of the electric field E dA is zero The electric field is zero everywhe on the surface Reason The charge inside the surface is zero
- Q In the circuit shown here E E E3 2 V and R R 4 ohms The current flowing between points A and B through battery E is 8 Ei A...
- Q 9 Assertion When a charged body is brought near to an uncharged conducting body equal and opposite charge is induced on the nearer surface of the conducting body Reason Net...
- Q O 85 a wire as shown in the figure is then which of the following statement s is are correct a Electric field at the centre is 280 R b...
- Q 31 The potential at a point x measured in m due to some charges situated on the x axis is given by 20 V x volt x 4 The electric...
- Q In the diagram shown there is a square inside there is another square and inside it there is another square and so on On the vertex of each square a...
- Q Suppose there is a uniform electric field E 50 V m If a negative char particle moves in the y direction then its electric potential energy 1 Increases 2 Decreases...
- Q A uniformly charged hemisphere of radius b and charge density p has a hemispherical depression of radius a a b 2 cut from its centre If the electric field at...
- Q 28 Two point charges of equal magnitude but opposite polarity are kept at po A 0 0 3a and B 0 0 3a respectively The work done by the ele...
- Q Q1 A positive point charge of Q coulomb is placed at the centre of a sphere of radius R The Electric fl through the surface is X units If the...
- Q 28 Answer Q 28 29 30 by appropriately matching the information given in the three columns of the following table Consider a non conducting ring of radius r and mass...
- Q A proton travels through a uniform electric field E 20 000V m for a distance of d 5 m What is the amount of kinetic energy gained by the particle...
- Q Two similar spheres are not experiencing any force initially Now when 10 3 electrons ar transferred from one sphere to other they experience the force of 0 25 N What...
- Q Please provide Handwritten answer Consider the situation shown in the figure The three point charges are identical and each has a mass of 0 1278 kg The length L 30...
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