Physics question and answers for February 05, 2024
- Q A charge Q is placed at the origin and another charge 2Q is placed at the point a 0 0 The surface of zero potential is a sphere whose centre...
- Q 2 C charge is shifted from Pto Q If workdone by external force in this process is 160 x 10 jo then potential difference between points Pand Qi e Ve...
- Q 10 Two conducting spheres have radii R 0 5 m and R 1 m Each of them has 300 C charge on its surface If the spheres are joined by...
- Q A small sphere having charge Q is fixed at one position and two identical point charges q having mass m are kept on a line passing through centre of sphere...
- Q A thin dielectric rod of length I lies along the x axis with o ne end at origin and other at the point 1 0 It is uniformly charged with...
- Q 2 The charge flowing through a resistance R varies at bt2 where a and b are with time t as Q at positive constants The total heat produced in R...
- Q A conductor has a cavity inside it Which of the following statements is true A The electric field inside the cavity is zero irrespective of whether there is a charge...
- Q 35 Assertion A Two protons placed at different distances between the plates of a parallel plate capacitor experience the same force Reason R The electric field between the plates of...
- Q 7 Work done by external agent in assembling three identical charges from infinity to given locations is 1 3 91r rar 5 q 8 r 5 q 2 r Los...
- Q 20 cm In force on a centre of ERT Pg 46 5x10 7C d at points 0 15 cm moment of RT Pg 46 7 Cm pol is found 6...
- Q 3 A system of two charges A 2 5 10 7C and q 2 5 10 7C are located at points 15 cm and B 0 0 15 cm respectively...
- Q The region between two concentric conducting spherical shells of radii r and r b ra is filled with a poor conducting material The inner sphere is maintained at a potential...
- Q 7 Three concentric metallic shells A B and C of radi a b and c a b c have surface charge density o o and a respectively If A and...
- Q A non conducting disc of radius Ris given charge in such a way that charge density on the disc is given by a a following question Potential at the center...
- Q 26 In the circuit shown in figure E 2E 20 V R R 10 k and C 1 F Find the current through R R and C when R E...
- Q The magnitude of electric field experienced by a charge at a certain distance from a source charge is equal to 64 N C What will be the magnitude of the...
- Q In an LR circuit the a c source has a voltage 220 V If the potential difference across the inductance is 176 V then the potential difference across the resistance...
- Q A non conducting rod AB of length 3 R has uniformly distributed charge of linear charge density nonconductor ring has uniformly distributed charge Q Point A is the centre of...
- Q In Column l configuration of charges are given Column Il gives the location of null point E 0 and potential at null point Match the entries of two columns Column...
- Q EXAMPLE 153 Eleven equal wires each of resistance r form the edges of an incomplete cube Find the total resistance from one end of the vacant edge of the cube...
- Q 34 A uniform wire of resistance 92 is joined end to end to form a circle Then the resistance of the circular wire between any two diametrically points is Kerala...
- Q Two charges 2 C and 2 C are placed at 10 cm 0 0 and 20 cm 0 0 respectively in the presence of a uniform external electric field of...
- Q a spherical cavity with radius R inside this sphere with a negative point charge Q located in its center Find a Charge on the inner and outer surface of the...
- Q A solid sphere of radius R having uniform volume charge density p is shown in figure A spherical cavity of radius difference between centre of cavity and centre of sphere...
- Q Two point charges A q m and B 2q m are placed at rest at separation of in uniform electric field E as shown If separation between charges remains constant...
- Q In Column I configuration of charges are given Column Il gives the location of null point E 0 and potential at null point Match the entries of two columns Column...
- Q Two point charges A q m and B 2q m2 are placed at rest at separation of in uniform electric field Eo as shown If separation m between charges remains...
- Q Two point charges q and q2 are placed a distance r apart in vacuum An infinite dielectric slab of thickness and dielectric constant k 4 is placed between them Which...
- Q A quarter disc of radius R placed as shown has uniform surface charge density o A point P 0 0 R is located in space Let E and be the...
- Q The figure shows some of the equipotential surfaces The magnitud and direction of the electric field is given by y cm 10 V 20 V 30 V 40 V 30...
- Q 7 The potential difference that must be applied to stop the fastest photoelectrons emitted by a nickel surface having work function 5 01 eV when ultraviolet light of 200 nm...
- Q A small bob of charge Q and mass 5 kg is suspended with the help of an ideal string and an ideal spring of K 5 x 10 N m...
- Q 4 a c b 15 5 A charged water drop of radius 1 mm and charge of 104nC is just suspended in air in vertical plane in presence of vertical...
- Q 18 Neutral metal sphere of radius R is connected to Yea earth through a switch S which is initially open Two charges 3Q and 2Q are kept at 9R and...
- Q A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting hollow speherical shell Let the potential difference between the surface of the solid sphere and...
- Q 17 Plot a graph showing the variation of coulomb force F versus 1 r where r is the distance between the two charges of each pair of charges 1 C...
- Q ge 2m an electron has intrinsic angular momentum I called spin and a permanent magnetic dipole moment M L associated with the spin where e is the positive electron charge...
- Q Two conducting spherical shell of radii R 2R given charges Q and 2Q respectively Inner shell is provided with a switch which can ground the inner shell as shown Switch...
- Q A disk of radius a 4 having a uniformly distributed charge 6C is placed in the x y plane with its centre at a 2 0 0 A rod of...
- Q A thin non conducting semi circular ring of radius R has a linear charge density cose where Xo is constant then X Total charge on ring is R Total charge...
- Q Question No 5 The figure shows a circular ring of radius R 0 5 m and mass 0 5 kg Part ABC and ADC carries uniform charge and TC When...
- Q The electric field vector at point P a a a due to three uniformly charged infinite wires 1 2 and 3 kept the x y and z axes respectively as...
- Q In a glass bulb filled with gaseous neon two metal plates are used as electrodes separated by a distance d 4 mm that is much smaller than the linear dimensions...
- Q A solid spherical conductor of radius R has a spherical cavity inside it as shown in the figure 1 A point charge q is placed at the centre of cavity...
- Q 4 A charge of 17 7 x 104 C is distributed uniformly over a large sheet of area 200 m Calculate the electric field intensity at a distance of 20...
- Q There is a non conducting sphere of uniformly distributed charge density p insulated from surrounding There is a cavity inside the sphere as shown in figure P is the centre...
- Q 06 07 08 R 9 09 V decreases 10 V increases 11 V remains unchanged 12 13 Q 17 18 of 54 A solid spherical conductor of radius R has...
- Q Number of electrons removed from a neutral metal sphere are 20 x 10 then this sphere is put in contact with a neutral sphere of double the radius then the...
- Q 2 A circular ring carries a uniformly distributed positive charge and lies in the xy plane with center at the origin of the coordinate system If at a point 0...
- Q from a distance 4 am A charged particle of charge q and mass mis projected with initial velocity Vo a from the fixed charge Q at an angle of a...
- Q There are two concentric conducting shells The potential of outer shell is 10 V and that of inner shell is 15 V If the outer shell is grounded the potential...
- Q Q A globe is fitted with identical charged particles of charge q on the equator at an angular separation of 300 The radius of globe is given to be R...
- Q 2 Find the electric potential of the conductor in the form of a circular loop of radius R and has a total charge Q The loop is enclosed in a...
- Q Figure below shows a small sphere with mass 1 50 g hangs by a thread between two very large parallel vertical plates 5 00 cm apart The plates are insulating...
- Q All the charge particles each of magnitude q lie on the circumference of a ring of radius R as shown in the figure Find the magnitude of net electrostatic force...
- Q Shown in the figure is a spherical shell with inner radius a and outer radius b which is made of conducting material A point charge Q is placed at the...
- Q Problem 2 32 Two positive point charges qA and q masses m and m are at rest held together by a massless string of length a Now the string is...
- Q Total charge Q is uniformly spread along circumference of a fixed ring of radius R A small test charge q of mass m is kept at the centre of the...
- Q If 50 joule of work must be done to move an electric charge of 2 C from a point where the potential is 10 volt to another point where the...
- Q Some equipotential lines are as shown is fig E E and E3 are the electric fields at points 1 2 and 3 then fagurfa tarta E f 1 2 i...
- Q a 17 b 11 c 9 d 14 25 A proton is revolving on a circular path of radius 2 mm with frequency 10 Hz Magnetic dipole moment associated with...
- Q Two Concentric charged sphere of radi us R and 3R carry q and Q amount of ch arges Q q If two spheres are conne cted by a conducting wire...
- Q Read the assertion and reason carefully to mark the correct option out of the options given below Assertion A When a dielectric is placed in uniform electric field anywhere inside...
- Q Two concentric shells kept in air have radii Ra r They have similar charge and equal surfa charge density o The electrical potential at th common centre is 1 3...
- Q Three charges with magnitudes q 2q 3q are placed at the vertices of an equilateral triangle whose each side is of length a Only by changing the signs of charges...
- Q A C power is transmitted from a power house at a high voltage as A B C the rate of transmission is faster at high voltages it is more economical...
- Q harge Q is distributed on a small hollow conducting sphere radius r This sphere is kept inside a spherical cavity of radius r which is made inside a olid neutral...
- Q 19 A point charge q is placed at a distance r from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R The electric...
- Q 32 Six charges are placed at the vertices of a regular hexagon as shown in the figure The electric field on to the plane of the figure at a distance...
- Q 33 If an electron enters into a space between the plates of a parallel plate capacitor at an angle a with the plates and leaves at an angle to the...
- Q 12 A conducting shell of radius R carries charge Q A point charge Q is placed at the centre The electric field E varies with distance r from the centre...
- Q 3 Intensity and potential of a charge at point of r distance from it is E V respectively Medium of dielectric constant K is introduced Position R for which the...
- Q 37 In the following figures which represents the variation of the electric field with distance from the centre of a uniformly charged non conducting spheres of radius R a 1...
- Q A circular path of 10 cm radius is imagined in a uniform electric field of field strength 10 V m such that its plane coincides with the plane of field...
- Q 44 An insulated ring of radius 4m having a charge 91 2 x 10 5C is uniformly distributed over it Another particle having charge q2 4 x 104 C is...
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