Physics question and answers for January 26, 2024
- Q A charged particle with charge q and mass m starts with an initial kinetic energy K at the middle of a uniformly charged spherical region of total charge Q and...
- Q 11 An electric dipole consists of charges 2e and 2e separated by 0 78 nm The dipole lies in an electric field of strength 3 4 x 10 N C...
- Q 16 A dipole of dipole moment 10 7 Cm in the negative z direction is placed in an electric field along positive z direction The magnitude of electric field increases...
- Q A bullet of mass 2 g is having a charge of 2 C Through what potential difference must it be accelerated starting from rest to acquire a speed of 10...
- Q 33 A point charge q is placed at a distance d from an isolated conducting plane The field at a point P on the other side of the plane is...
- Q The mean free path of conduction electrons in copper is about 4x108 m For a copper block find the electric field which can give on an average 1 eV energy...
- Q If VAB is 4 V in the given figure then resistance X will be 5 V a 50 102 wwwww 2 V b 10Q X ww ww c 15Q B...
- Q 15 5 x 10 N C directed towards 10 C Two charges 8 C and 2 C are placed 10cm apart The intensity of the electric field is zero at...
- Q On the circuit shown what is the current measured by the ammeter Each resistor is 50 ohms and the battery is 50 volts 1 Point 0 15 A 0 27...
- Q A hollow charged metal sphere has radius r If the potential difference between its surface and a point at a distance 3r from the centre is V then the electric...
- Q Between two infinitely long wires having linear charge densities and there are two points A and B as shown in the figure The amount of work done by the electric...
- Q A hollow charged conductor has a tiny hole cut into its su Show that the electric field in the hole is o 2e n where is the unit vector in...
- Q 3 The force experienced by a charge in an electric field of intensity 200Vm is 1 milli newton The 4 F E q charge is Suc 2 5C The electric...
- Q 3 4j 5k 5 2 the X axis The intensity of the electric field at origin is n chares Q 4Q 9Q 16Q are placed at distances of 1 2...
- Q 1 Find the electric intensity at a distance of 1m from a charge of InC InC 10 C 9N C 2 18N C 3 12N C 4 24N C 2...
- Q 2 Electric field at centre O of semicircle of radius a having linear charge density given as a 22 Ea 2 c 2 b d Ea 0 a 2 2000
- Q PRACTICE PROBLEMS 2016021 8 9 An electric dipole consists of two charges 10 C lying 10 cm apart Calculate the electric field at a point P situated on the axis...
- Q 2 The electrostatic force on a small sphere of charge 0 4 C due to another small sphere of charge 0 8 C in air is 0 2 N a...
- Q A metal sphere is charged What is meant by the quantisation of charge f fundamental charge 2 T
- Q 20 For the given figure if F is force on q due to q and F F is force on q due to q then find F 9 30 9...
- Q sphere An infinite line charge produces a field of 9 104 N C at a distance of 2 cm Calculate the linear charge density
- Q A proton and an electron are placed 1 6 cr in free space Find the magnitude of elect force between them What is the nature force
- Q Figure shows a shell of radius R having charge q uniformly distributed over it A point charge q is placed at the centre of shell Find work required to increase...
- Q value of the point charge 1 A conducting sphere of radius 10 cm has an unknown charge the electric field 20 cm from the centre of the sphere is 1...
- Q An electric dipole consists of two equal and opposite point charges and 9 separated by a distance 2 P is a point collinear with the charges such that its distance...
- Q capacitar 30 Eight identical spherical drops each carrying a charge 1 nC are at a potential of 900 V each All these drops combine together to form a single large...
- Q 01 Two infinitely large sheets having charge densities and 2 respectively 01 02 are placed near each other separated by distance d A charge q is placed in between two...
- Q point charge q is placed at distance R 2 from its centre C Also there is a charge 2q 1 K 4ca E placed outside the shell at a distance...
- Q 100 mm The en charged particles are kept fixed on the X axis at point x 10 mm 20 mm 30 mm st particle has a charge 10 C the...
- Q Statement I Two concentric charged shell are given The potential difference between the shells depends on charge of inner shell BA Statement II Potential due to charge of outer shell...
- Q Q 29 1 0 30 1 Questions Q 29 Q 30 Each of these questions contains two statements Statement I and Statement II Each of these has four alternatives choices...
- Q a Very Short Answer Questions REFLECTION OF LIGHT 2 1 What is meant by a self luminous source What is a transparent medium How do you define a beam 3...
- Q A hollow spherical shell of radius r has a uniform charge density o It is kept in a cube of edge 3r such that the center of the cube coincides...
- Q 3 The total energy of electron in the ground state of hydrogen atom is 13 6 eV The kinetic energy of an electron in the first excited state is AIPMT...
- Q 1 Charge q2 of mass m revolves around a stationary charge q in a circular orbit of radius r The orbital periodic time of 92 would be 1 3 4...
- Q Glass ball is rubbed with ebonite ball and kept at a separation of 1cm If the force of attraction between them is 10N find charge on each ball
- Q 3 A uniformly charged rod of length 4 cm and linear charge density 30 C m is placed as shown in figure Calculate the x component of electric field at...
- Q 13 Two equally charged small balls A and B placed at a fixed distance experience a force F similar uncharged ball C after touching one of them is placed at...
- Q You are part of a design team assigned the task of making an electronic oscillator that will be the timing mechanism of a micro machine You start by trying to...
- Q A cow and a man are standing in a mead road when lightning strikes the ground nearby Who is more likely to be killed and Why Cow because man is...
- Q Three charges are arranged on the vertices of an equilateral triangle as shown in the figure Find the dipole moment of the 3 combination Find the electric field due to...
- Q qis placed in a spherical cavity made in a positively charged sphere with uniform volume charge density The centres of sphere and cavity are displaced by a small distance 7...
- Q sing Thomson s model of the atom consider an atom consisting of two electrons each of charge e embedded in a sphere of charge 2e and radius R In equilibrium...
- Q 36 Eight charges having the values as shown in fig are arranged symmetrically on a circle of radium 0 1 m in air Potential at center O will be 7...
- Q 218 56 Two charges each equal to q are kept at x a and x a on the x axis A particle of mass m and charge qo q 2...
- Q A charge q is placed at rest on ve x axis at the point a 0 and another charge aq is placed at the point a a 0 Find a...
- Q 9 Two identical positive charges are fixed on the y axis at equal distances from the origin U A negatively charged particle starts from negative x axis at a large...
- Q electric force experienced by any charge Ans 4 21 The electric field in a region is given by E ai bj Here a and b are constants Find the net...
- Q An infinite number of charges each of magnitude q are placed on x axis at distances of 1 2 4 8 meter from the origin respectively Find intensity of the...
- Q A clock face has negative charges q 2q 3q 12q fixed at the position of the corresponding numerals on the dial The clock hands do not disturb the net field...
- Q 23 An infinitely long current carrying wire and a small current carrying loop are in the plane of the paper as shown The radius of the loop is a and...
- Q In a uniform electric field E a conductor in the form of a sphere is introduced How will the intensity of the field at points A B and C change...
- Q Examp 14 Consider the charges q q and q placed at the vertices of an equilateral triangle f each side 1 What is the force on each charge NCERT Solved...
- Q Ihree charges are placed at the vertices of an equilateral triangle of side 1 m as shown in fig An electron is placed at the centre of the triangle What...
- Q Two free point charges 4e and e are placed a distance a apart Where should a third point charge q be placed between them such that the entire system may...
- Q In the basic CsCl crystal structure Cs and Cl ions an arranged in a bcc configuration as shown in the figur The net electrostatic force exerted by the eight Cs...
- Q Six point charges are kept at the hexagon of side L and centre O as shown in figure which of the following 1 q 4 co L statement s is...
- Q Two point charges Q and 3Q are placed at some distance apart If the electric field at the location of Qis E then field at location of 3Q is 1...
- Q Four point charges each of charge 4 C are placed at the four corners of a square such that they are in equilibrium when a charge q is placed at...
- Q A solid sphere of radius R has charge q uniformly distributed over its volume The distance from its surface at which the potential is equal to half of the potential...
- Q 5 Four charges each equal to Q are placed at the four corners of a square and a charge q is placed at the centre of the square If the...
- Q In section PQ of a circuit P is at higher potential than 9 by 40 V The potential difference in volt across the battery A is A 6 V C...
- Q 1 Faraday s laws are consequence of conservation of a energy b energy and magnetic field c charge d magnetic field 1991
- Q A conducting sphere of radius r having charge Qo is connected to earth through an ideal inductor of inductance L and a switch S The switch S is closed at...
- Q 42 A straight wire of a diameter 0 5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current The...
- Q Consider a sphere of radius R with charge density distributed as p r kr For r R 0 for r R a Find the electric field as all points r...
- Q Fig 1 52 6 Find the magnitude and direction of electric field at point P in Fig 1 53 A 99 9 a B Ec a P EB EA q...
- Q A non conducting rod of AB having uniformly distributed positive charge of linear charge density is kept in x y plane The rod AB is inclined at an angle 30...
- Q Two identical conducting spheres one having an initial charge Q and the other initially uncharged are brought into contact a What is the new charge on each sphere b While...
- Q Two point charges q and 4q are separated by a distance of 6a Find the point on the line joining the two charges where the electric field is zero Ans...
- Q 3 Find the magnitude of dipole moment of the following system 9 1 21 aq 3 4 ag 4q 60 60 a 5q 2 Zero 4 10 ag
- Q Iwo 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 If the electric field in a region varies according to yi xj Assuming the potential at the origin to be zero the potential at point 3m 4m is Et t...
- Q 1 Two spheres have radii 10 cm 20 cm One of the sphere is given 150 C charge and connected by a wire Their common potential will be 1 9...
- Q The electrostatic potential existing in the space is given as V density in coulomb m at x 2m 3 x 680 2 volts Find the charge
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