Electric Charges and Fields questions
340 published questions with worked solutions.
- The surface charge density of a conductor is 12 10^ -12 C/m^2 . If the conductor surrounded by a medium of dielectric constant...
- A cube of side l is placed in a uniform field E, where E=E i. The net electric flux through the cube is
- Two spheres A and B are having radii 5 cm and 10 cm carrying charges of +5 C and +15 C respectively, distributed uniformly. Their...
- A cubical Gaussian surface encloses 24 C of charge. The electric flux through each surface of the cube is
- An infinite line of charge produces a field of 9 10^4 N/C at a distance of 4 cm. The linear charge density is
- A cylinder of radius 4 mm and surface density of charge 0.25 C/m^2 is surrounded by a medium of dielectric constant 6.28. The...
- The electric field intensity at a point near and outside the surface of a charged conductor of any shape is ‘E_1’. The electric...
- The inward and outward electric flux for a closed surface in units of N ,m^2/C are respectively 8 10^3 and 4 10^3. Then the total...
- The number of electrons to be put on a spherical conductor of radius 0.1 m to produce an electric field of 0.036 N/C just above...
- Eight dipoles of charges of magnitude e are placed inside a cube. The total electric flux coming out of the cube will be
- What is the nature of Gaussian surface involved in Gauss law of electrostatics?
- Three charges +5 C, +7 C and −4 C are situated within a body and charges −5 C, −7C and +4 C are situated outside the body. The...
- An infinite line charge produces a field of 7.182 10^8 N/C at a distance of 2 cm. The linear charge density is
- A spherical conductor of radius 2 cm is uniformly charged with 3 nC. What is the electric field at a distance of 3 cm from the...
- A charge Q is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled, then the outward electric flux will
- The basic difference between electric lines of force and magnetic lines of force
- If the angular momentum of an electron is J then the magnitude of the magnetic moment will be
- A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is :
- A charge q is located at the centre of a cube. The electric flux through any face is -
- An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. The coulomb force F between the two...
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