Physics question and answers for February 11, 2024
- Q A conducting sphere of radius R and a concentric thick spherical shell of inner radius 2R and outer radius 3R is shown in figure A cha 10Q is given to...
- Q Q 27 Three charges 2q q and q lie at vertices of a triangle The value of electric field and electric potential at the centroid of triangle will be E...
- Q Use the following constants if necessary Coulomb constant k 8 987 10 Nm C Vacuum permitivity 0 8 854 x 10 F m Magnetic Permeability of vacuum M40 12 566370614356...
- Q 33 A point charge q is kept at A The potential at point P at distance r from it is v and twice of this charge is distributed uniformly on...
- Q For the same question asked earlier different expert has given different answers Confusion is between option 1 3 Package says 3rd Please explain A thin diamagnetic rod is placed vertically...
- Q The rod of non uniform linear charge density ax where a 3 00 nC m placed on the x axis such a way that one of its ends is at...
- Q Figure shows three electric field lines If FA FB and Fe are the forces on a test charge q at the positions A B and C respectively then a FA...
- Q In a certain region of space the electrostatic field depends only on the coordinates x and y as follows E 0 for x y ro 2 E a xi y...
- Q The two equal and opposite charges with magnitude 1 7 C and the third charge 2 8 C is placed as shown in the figure Determine the electric potential energy...
- Q 11 A circular current loop of radius 3 0 cm carries a current of 1 5 mA a What is the magnitude of ts magnetic dipole moment b If the...
- Q Question 2 25 points Two charges q 4 C and q 4 C are located as shown in the Figure In the Figure d 0 2 m and s 0...
- Q Calculate the Electric Field at P Show calculation of the vector components net x and y components and resultant magnitude and direction Calculate the Electric Potential at P from Figure...
- Q A system of two charges QA 2 5 10 7 and QB 2 5 10 7C are located at points A 0 0 15 cm and B 0 0 15...
- Q A point charge Q 4 10 7 C is placed at a point in free space How much work is required to bring a charge 2 nC from infinity to...
- Q ALLEN Build Up Your Understanding Two point charges placed at a distance Y in air exert a force F The distance at which they exert same force when placed in...
- Q Interactive LeamingWare 18 1 offers some perspective on this problem Two tiny spheres have the same mass and carry charges of the same magnitude The mass of each sphere 2...
- Q 13 The separation between two protons so that the electrostatic repulsive force acting on either of them is equal to its weight is Given charge of proton 1 67 x...
- Q 20 Two point charges 4 C and 10 C are placed 10 cm apart in air A dielectric slab of large length and bread and thickness 5 cm is placed...
- Q 15 A charge q is divided into two parts and the two parts are kept apart in air The force between them is maximu if the two parts have the...
- Q 17 Two electric bulbs A and B rated 200 V 100 W and 200 V 60 W are connected in series to a 200 V line Then the potential drop...
- Q 14 Electric charges 1 C 1 C and 2 C are placed in air at corners A B and C respectively of an equilateral tri ABC of side 10 cm...
- Q 19 A cylinder has a radius of 2 1 cm and a length of 8 8 cm Total charge 6 1 x 107 C is distributed uniformly throughout The volume...
- Q An electric dipole is placed making at an angle 60 with an electric field of strength 4 x 105 N C It experiences a torque equal to 8 3 N...
- Q A composite spherical shell of radius r 10 cm and wall thickness t 0 1 mm is made of copper except an equatorial strip of width b 0 2 cm...
- Q 69 Charges Q and 20 are given to parallel plates A and B respectively and they are separated by a small distance The capacitance of the given arrangement Qo 200...
- Q 21 Two pith balls each of mass 30 mg are suspended by two threads from a support When charged identically the two pith balls move apart by 0 08 m...
- Q 3 In a uniformly charged sphere of total charge Q and radius R the electric field E is plotted as function of distance from the centre which would graph correspond...
- Q In the given figure a diode D is connected to an external resistance R 10022 and an e m f of 3 5V If the barrier potential developed across the...
- Q A thin spherical shell is given a char ge q 4uc uniformly distributed over surface Consider abpoint P outside s hell at distance of 2m from surface I f the...
- Q The electric potential at a point in free space due to a charge Q coulomb is Q x 1011 volts The electric field at that point is AIPMT Prelims 2008...
- Q Plz explain both the questions both are on same concept 3 An charged insulated spherical conductor A is brought near another grounded conductor B then CST CSS 02 P 4...
- Q Oscillating magnetic field in a plane electromagnetic wave is given by B 4 x 10 sin 9 x 10 t 30x tesla Expression for oscillating electric field in N C...
- Q Consider two charges q and q placed at B and C of an equilateral triangle ABC For this system the total charge is zero But the electric field intensity at...
- Q In the figure shown A and B are two points at a distance d from each of two equal and unlike chartes The work done in transferring a negative charge...
- Q 1 A point charge Q is kept at a distance 3a from the centre of a spherical conducting shell of charge 3Q and radius a Assuming K 4TEO statement s...
- Q Q2 20 marks A conducting spherical shell Figure 1 having inner radius a 1 8 m and outer radius b 2 4 m carries a charge of Q 4 0...
- Q 27 180 Same current is flowing in three infinitely long thin wire along positive x y and z direction The magnetic field at a point 0 0 a would be...
- Q particle of mass m and charge q is thrown perpendicular to an electric field of tensity E with an initial velocity v The particle moves a distance x perpendicular to...
- Q t ht ed d 3 2 4TE MR 4TE R 23 Select from the four particles that contribute to the electric field at point P on the surface 93 1...
- Q 23 Select from the four particles that contribute to the electric field at point P on the surface 9 1 93 and 94 3 9 92 93 and 94 02...
- Q A particle of charge q and mass m is released at a distance x from axis of ring having charge Q and radius R For x R the time period...
- Q 0 A plane electromagnetic wave E 100 sin 5 x 108 t 3x V m is propagating through a medium The refractive index of the medium is NCERT Pg 276...
- Q Two charged parallel plate capacitors each with separation between plates equal to d are separated by a large distance L d Then the force of interaction between them is proportional...
- Q Q 26 A cylinder of radius a 0 1 m is placed as shown below in a uniform electric field of E 50iN C The total electric flux through the...
- Q 21 If four identical charged particles of charge q are kept at the vertices of regular pentagon then force acting on charge q kept at centre of polygon here r...
- Q An electric dipole is placed in an uniform electric field with dipole axis making an angle 0 with the direction of electric field For dipole to be in stable equilibrium...
- Q An electron moving with the speed 5 108 m s is projected parallel to the electric field of intensity 1 10 N C Field is responsible for the retardation of...
- Q Q 20 An a particle is moved from point A to point B via points C If VA 10 volt VB 35 volt Vc 20 volt then work done is...
- Q The magnitude of electric field due to an short electric dipole at a distance r from its centre in equatorial position is E If the dipole is rotated through an...
- Q A very thin Metallic spherical shell contain a charge Q over it A point charge q is placed inside the shell at a point T separated from a center by...
- Q Two positive lons each carrying a charge q are separated by a distance d If F is the force of repulsion between the ions then the number of electrons missing...
- Q 20 Three concentric spherical shells have radii a b and c a b c and have surface charge densities o o and o respectively If V V and Vc denote...
- Q Electric charge on sphere A is equal to electric charge of sphere B The spheres are joined by conducting wire Then the wire is removed the common potential on each...
- Q Two charged particles a and b of same mass are accelerated through the same potential difference On entering a region of uniform magnetic field they describe circular paths of radii...
- Q Six point charges are placed at the vertex of regular hexagen of side a then what will be potential energy of charge Q centre A B 6KQ a 2KQ a...
- Q 21 An infinitely long cylindrical wire of radius R carries a current whose density varies as j br where b is a constant and r is the distance from axis...
- Q Two point charges exert a force 20 N when placed in a free space When this system is placed in dielectric constant 5 then net force on each charge is...
- Q 4 Two metallic spheres of radii 1 cm and 3 cm are given charges of 1 x 10 2 C and 5 10 C respectively If these are connected by...
- Q Two identical conducting spheres carrying different charges attract each other with a force F when placed in air medium at a distance d apart The spheres are brought into contact...
- Q 54 6 The electric potential in a certain region is expressed by V 6x 8xy 8y 6yz 4z volts The magnitude of the force acting on a charge of 2...
- Q 39 I Charges q and 29 in FIGURE P23 39 are located at x a Determine the electric field at points 1 to 4 Write each field in component form...
- Q There is a cube of side a whose face ABCD is in in X Y pl ane and the positions of the vertices A B C D are A 0...
- Q A sheet of charge ps 2nC m is present at the plane x 3 in free space and a line charge P 20nC m is located at x 1 z...
- Q 10 Two point charges q and q are separated by a distance 27 Find the flux of electric field strength vector across the circle of radius R placed with its...
- Q A 100 W bulb B two 60 W bulbs B and B are connected to a 250 V source as shown If W W and W are powers of the...
- Q Two point charges 7 C and 2 C a placed at position 9 cm 0 and 9 cm respectively How much work is required separate two charges infinitely away fr...
- Q The electric field is uniform in a region of space as shown in the figure A B and C are points in space We take a positive point charge 9...
- Q 18 Figure shows track of three positive charged particles through uniform electric field E All charges are equal in value Which charge particle has more initial kinetic energy on entering...
- Q 5 A simple pendulum is oscillating with time period T Now charge q is given to the bob and similar charge is kept at the point of suspension as shown...
- Q Two point charges q and q2 occupy fixed positions in free space If at every point on a curved surface surrounding the charges as shown in the figure net electrostatic...
- Q of electric field lines In ach pattern a proton is released from rest at point P and then accelerated wards the point Q by the electric field Rank the patterns...
- Q The conducting shells A and Bare arranged as shown below If charge on the shell Bis q then electric flux linked with the spherical Gaussian surface Sis Only one correct...
- Q 1 The electrostatic force between two small charged spheres having charges of 2 x 10 6 C and 3 x 106 C placed 30 cm apart in air is NCERT...
- Q find charge of 3 00 nC is placed at the origin of an xy coordinate system and a charge of 2 00 nC is placed on ne y axis at...
- Q Neutral metal sphere of radius Ris connected to earth through a switch S which is initially open Two charges 3Q and 2Q are kept at 9R and 3R distances from...
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