Electric Charges and Fields questions
340 published questions with worked solutions.
- The total number of tubes of induction passing normally through the unit area is called as
- The total number of tubes of induction passing normally through the given area is called as
- A point charge of 3 mC is situated in air at the centre of a sphere of radius 10 cm. Find the T.N.E.I. through a portion of the...
- If the body is positively charged then it has
- The least charge on an object is :
- Two identical spheres with charges Q and –3Q experiences a force F at certain distance. If they are kept in contact then placed...
- Force exerted by the electric field on a electron carry charge e and mass m is
- Two point charges 20 , and 80 , are 10 cm distance apart. At what point on the line joining them, the field intensity will be zero
- Electric lines of force about a sphere rich in electrons are:
- A charge q mc is placed at the centre of a cube. Then the electric flux passing through each face of this cube is :
- Eight electric dipoles of charges of magnitude e are placed inside a cube. The electric flux coming out of cube will be :
- A ball bearing of radius 2 mm and surface charge density 5 , /m^2 is situated inside a closed surface the T.N.E.I. over the...
- The total electric flux from unit positive charge in air ( _0) is :
- Frictional electricity is produced on two bodies due to :
- The charge deposited per unit area of the surface is called:
- There is an electric field E in X direction. If the work done on moving a charge of 0.2 C through a distance of 2 m along a line...
- The number of tubes of force originated from a point charge of 6 , placed in a medium of dielectric constant 4 will be :
- In a closed surface there are five charges of 10 , , -20 , , 5 , , 4 , and 1 , . What is the T.N.E.I. over the closed surface?
- The value of electric intensity in which an electron experiences a force which is equal to its weight will be :
- Gauss's law helps in
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