Popular Questions
- A soap bubble is given a negative charge, then its radius
- A comb run through ones dry hair attracts small bits of paper. this is due to
- A Charge Q is placed at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the ne..
- Two spheres carrying charges +6muC and +9muC seperated by a distance d, experiences a force of repulsion F. when a charge of -3muC..
- The charge q is projected into a uniform electric field E, work done when it moves a distance Y is
- Energy associated with a moving charge is due to a
- The magnitude of electric force experienced by a charged particle in an electric field depends on
- Two identical conducting spheres carrying different charges attract each other with a force F when placed in air medium at a dista..
- when 10 power 19 electrons are removed from a neutral metal plate through some process, the charge on it becomes
- Two spheres having same radius and mass are suspended by two strings of equal length from the same point, in such a way what that ..
- A solid sphere of radius R1 and volume charge density p = po/r is enclosed by a hollow sphere of radius R2 with negative surface ..
- A solid spherical conductor of radius R has a spherical cavity of radius a (a < R) at its centre. A charge +Q is kept at the cente..
- The surface charge density (in C/m power 2) of the earth is about
- A parallel plate capacitor is made of two circular plates seperated by a distance of 5mm and with with a dielectric of dielectric ..
- A parallel plate capacitor is made of two circular plates seperated by a distance of 5mm and with a dielectric of dielectric const..
- One of the following is not a property of field lines
- Two charges, each equals to q, are kept at x=-a and x=a on the x- axis. A particle of mass m and charge q0=q/2 is placed at the or..
- Two pith balls carrying equal charges are suspended from a common point by strings of equal length, the equilibrium separation bet..
- The small spherical balls each carrying a charge Q=10muC (10 micro-coulomb) are suspended by two insulating threads of equal lengt..
- Four point charges -Q , -q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the pot..
- A ring of radius r carries a charge Q uniformly distributed over its length. A charge q is placed at its centre will experience a ..
- Consider a neutral condicting sphere. A positive point charge is placed outside the sphere. The net charge on the sphere is then
- A conductor has been given a charge -3*10 power -7C by transferring electron. mass increase (in kg) of the conductor and the numbe..
- Two identical charges repel each other with a force equal to 10 mg wt when they are 0.6m apart in air.(g=10ms power -2). The value..
- The Value of electric permittivity of free space is
- Two small Spheres of mass M1 and M2 are suspended by weightless insulating thread of lengths L1 and L2. The spheres carry charges ..
- A charge Q is divided into two parts of q and Q-q. If the coulomb repulsion between them when they are seperated is to be maximum,..
- Number of electrons in one coulomb of charge will be
- Two identical conducting balls A and B have positive charges q1 and q2 respectively. But q1 is not equal to q2. the balls are brou..
- Two charged spherical conductors of radii R1 and R2 are connected by a wire. Then the ratio of surface charge densities of the sph..
- One metallic sphere A is given positive charge whereas another identical metallic sphere B of exactly same mass as of A is given e..
- If 10 power 10 electrons are acquired by a body every second, the time required for the body to get a total charge of 1C will be
- A point charge q is situated at a distance r on axis from one end of a thin conducting rod of length L having a charge Q uniformly..
- Two point charges +3muC and +8muC repel each other with a force of 40N. If a Charge of -5muC is added to each of them, then the fo..
- Two protons are distance of 1*10 power -10cm from each other. the forces acting on them are
- Electric charges of 1muC, -1muC and 2muC are placed in air at the corners A, B and C respectively of an equilateral traiangle ABC ..
- Charge an a-particle is
- Two small conducting spheres of equal radius have charges +10muC and -20muC respectively and placed at a distance R from each othe..
- The region between two concentric spheres of radii a and b respectively (see fig), has volume charge density p=A/r , where A is a ..
- Two charges are at a distance d apart. If a copper plate (Conducting medium) of thickness d/2 is placed between them, the effectiv..
