Physics question and answers for January 24, 2024
- Q 65 A charge 10 C is placed at the centre of a hemisphere of radius R 10 cm as shown The electric flux through the hemisphere in MKS units is...
- Q Two equal positive charges are kept at points A and B The electric potential at the points between A and B excluding these points is studied while moving from A...
- Q 2 Two fixed equal positive charges each q are located at point A B separated by a distance of 6 m A particle of mass m having equal and opposite...
- Q A uniform electric field of 50 2 Vm 1 exists in XY plane making an angle of 45 with positive X axis as shown in below figure The potential difference...
- Q 4 An electric dipole consists of two charges of 0 5 C kept at distance of 1 0 cm Calculate the potential energy required to place the dipole such that...
- Q Half ring of radius a is uniformly charged with charge density Find out electric field inten point O 1 3 i 2 2 a 2 4 4 4 1 2...
- Q A point charge Q is located at a distance from 2 the centre of an uncharged conducting spherical shell as shown in below figure The electric field at a distance...
- Q The electrostatic potential inside a charged spherical ball is given by o ar2 b where r is the distance from the centre and a b are constants Then the charge...
- Q shape of conducting wire PQRS as shown in figure placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular shape The direction of...
- Q The electric field intensity in a region is given by E xi yi V m where x y are in meters Then the pattern of line of forces in x...
- Q The potential on the hollow sphere of radius 1 m is 100 volt The potential at 1 4 m from the centre of sphere is MP PMT 2010 b 500...
- Q 10 A short electric dipole is placed along a of a uniformly charged sphere as shown Q 1 1 X 100 R If the force experienced by dipole at r...
- Q 5 Two point charges q and 2q are placed at the vertices B and C of an equilateral triangle ABC of side a as given in the figure Obtain the...
- Q Question 4 Consider the circuit shown below Find the power dissipated by the resistors Select the correct answer O 29 W O 34 W O 17 W 24 W R...
- Q 6 Two long parallel wires are at a apart They carry steady equal currents flowing out of the plane of the paper as shown The variation of the magnetic field...
- Q 2q and 8q are 120 cm apart Where would the location of the neutral point 3T B Calculate the NET Force exerted on the 2uc charge magnitude and 5 A...
- Q A solid sphere of radius R is uniformly charged with charge density p in its volume A spherical R cavity of radius is made in the sphere as 2 shown...
- Q 28 A thin metallic spherical shell contains a charg Q on it A point charge q is placed at the centre c shell and charge qi is placed outside it...
- Q 5 An electron is released on the axis of a positivel charged ring The motion of electron will be 1 Uniformly accelerated motion 2 Uniform motion 3 Non Oscillatory motion...
- Q 5 of radius r around the earth of mass M has ing in a circular orbit magnitude of total energy E Then its angular momentum will be 1 2Emr 2...
- Q 3 a Find the value of two equal charges if they repe one another with a force of 0 1 N when placed 0 5 m apart in air b...
- Q 9 Three concentric conducting spherical shells are arranged as shown in figure The middle and outermost shells are earthed The innermost sphere is given a charge 90 what are the...
- Q 67 Two sp i R2 Column I electric field for r R R Letr be the distance of a point from their common centre Then match the following columns and...
- Q 63 Two small balls having equal positive charge Q coulomb on each are suspended by two insulated string of equal length L meter from a hook fixed to a stand...
- Q a E 7kQ r c E 2 k Q r 2 b E kQ r d E 6 kQ r A positively charged insulator is brought near two metallic spheres...
- Q Calculate the force between two Protons if they are 4 0 10 15 meters away from each other Where charge of Proton is 1 6 10 19 Coulomb
- Q A small sphere of charge q mass m is at rest on smooth surface Another identical sphere of initial velocity u is projected from infinity towards the first sphere The...
- Q A closed solid conductor of irregular shape is given some charge Which of the following statement is correct 1 Potential of conductor will change if its shape is changed 2...
- Q A proton of mass m moving with a speed v approaches a stationary proton that is free to move Assume impact parameter to be zero i e head collision How...
- Q 5 Two identical spheres have opposite and unequal charge and are at a distance of 90 cm from each other They are touched together and then are placed at their...
- Q 12 The potential difference that must be applied to stop the fastest photo electrons emitted by a nickel surface having work function 5 01 eV when ultraviolet light of 200...
- Q The dipole moment of system is MR3 192 1 7gl 3 5 gl 39 2q X 2 6ql 4 2ql
- Q 3 Three point charges are located on a circular arc as shown in the Figure below a What is the total electric field at P the center of the arc...
- Q 9 Two small spheres each having a charge Q are suspended by insulating threads of length L from a hook This arrangement is taken to a space where there is...
- Q 13 Which option is incorrect for electrostatic field 1 It is conservative in nature 2 It may be non conservative 3 It follows inverse square law 4 It produces lengthwise...
- Q 8 A point particle of mass M is attached to one end of a massless rigid non conducting rod of length L Another point particle of the same mass is...
- Q A OI liquid in a cylindrical container of diameter D D d as shown in figure If it is burning at the rate of 2 cm hour then the top...
- Q 10 An electric dipole with dipole moment 4 x 109 C m is aligned at 30 with the direction of a uniform electric field of magnitude 5 x 104 NC...
- Q 40 The electric field components in the figure below are E 800x N C E E Calculate a The flux through the cube and 8x10 NYC b The charge within...
- Q 9 91 92 6 5 C 8 0 C 1 5 C Example 5 Two bodies A and B carry charges 3 00 C and 0 44 C How many...
- Q Three concentric spherical shells have radii a b and c a b c and have surface charge densities o 0 and o respectively If VA VB and Vc denote the...
- Q 21 A rod of length L has a total charge Q distribut uniformly along its length It is bent in the shape of a semicircle The electric field at the...
- Q The adjacent figure shows charged spherical shells A B and C having charge densities o o o and radii a b c respectively If VA Vc then b equals to...
- Q 19 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 The graph which would...
- Q Determine the potential difference between the points C and D in the given figure a 3 6 V c 12 V www D 12V 3UF 643 www 10 b 7...
- Q An electric dipole is placed at origin O such that equator is y axis At a point P far away from dipo the net electric field is in direction along...
- Q 10 0 cm on an x axis 12 In the figure particle 1 of charge 1 0 C and particle 2 of charge 3 0 C are held at separation...
- Q 7 Two identical particles each of mass m and charges q and q are revolving around their common centre of mass in a circle of radius r under the influence...
- Q ing spheres are of radii r and r The outer sphere is given a charge q The charge q on the inner sphere will be inner sphere is grounded 1...
- Q Two insulated charged conducting spheres of radii 20 cm and 15 cm respectively and having an equal charge 10 C are connected by a copper wire and then they are...
- Q Three charges 91 92 and q3 are located at the vertices of an equilateral triangle of a Find the electric potential energy of the system are brought one by one
- Q A solid insulating sphere of radius R is given a charge Q which is uniformly distribute over the volume If at a point inside the sphere the potential is 1...
- Q 55 If a charge q is placed at the a hemispherical body as shown below then the flux linked with the curved surface is 9 1 EO 9 2 200...
- Q After one bee left a flower with a positive charge that bee flew away and another bee with the same amount of positive charge flew close to the plant Draw...
- Q 24 If the attractive force between a 5 C charged particle and an 8 C charged particle is 10 5 N what is the distance between the two particles 124x1...
- Q Statement 1 A point charge q is placed inside a cavity of conductor as shown Another point charge Q is placed outside the conductor as shown Now as the point...
- Q Positive charges of 9 nC and 4 nC are placed at the points A and C respectively of a right angled triangle ABC in which ZB 90 AB 3 cm...
- Q 25 As a result of change in the magnetic flux linked to the closed loop as shown in the figure an e m f V volt is induced in the...
- Q Q 17 The force of attraction between two charges 70 C and 80 C separated by a distance of 0 25 mis 201 6N What is the dielectric constant of...
- Q A spherical cavity is created in a neutral solid conducting sphere Inside the cavity a dipole is placed as shown in the figure Electrostatic potential at point P only due...
- Q 4 3 4 As one moves radially from infinity towards the centre of uniformly charged sphere electric field intensity will V 1 Increase continuously 2 Decrease continuously 3 First decrease...
- Q BASED ON GAUSS LAW Figure shows a charge Q placed at the centre of open face of a cylinder as shown in figure A second charge q is placed at...
- Q The electric field components of the field shown in figure are E ax 2 E E 0 in which a 5 N C m2 Calculate a the flux de through...
- Q A parallel plate capacitor has a capacitance C and charge Q Another plate is inserted in between the plates of the capacitor at the center and is connected by a...
- Q 16 Two pith balls carrying equal charges are suspended from a common point by strings of equal length the equilibrium separation between them is r Now the strings are rigidly...
- Q 2 A bar magnet of length 3 cm has points A and B along its axis at distances of 24 cm and 48 cm o opposite sides Ratio of magnetic...
- Q Find the net potential energy of the system of charges shown in the adjacent figure a q q a
- Q An electric dipole is kept at origin as shown in the diagram The point A B C are on a circular arc with centre of curvature at origin If the...
- Q 26 The electric field required to keep a water drop of mass m just to remain suspended when charged with one electron is DPMT 1999 2001 mg a mg b...
- Q 1 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 field is more at P than at P In fact the electric field s proportional to the lines per unit area if the lines riginate isotropically from the charge P...
- Q 2 A charged particle having charge q and mass m accelerated by a potential difference Vo enters inside a parallel plate capacitor parallel to length of plates at midpoint of...
- Q IX 9 Three charges q q and q are placed at the corners of an equilateral Physics Vol 3 triangle of side a Find the resultant electric force on a...
- Q 38 A positively charged ring is in y z plane with its centre at origin A positive test charge q held at Porigin is released along x axis then its...
- Q The electric potential at a point x y in the xy plane is given by V Kxy The electric field intensity at a distance r from the origin varies as...
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