Electric Charges and Fields questions
340 published questions with worked solutions.
- A proton of mass 1.67 10^ -27 kg and charge 1.6 10^ -19 C is placed in uniform electric field of intensity 3.25 10^ 4 N/C in air....
- An electron and a proton are freely placed in an electric field. If 'a_p' and 'a_e' are the accelerations produced in them...
- Two point charges each having charge 'q' are kept in such a way that the distance between them is 'r' m and force experienced by...
- The property acquired by the material body when it is rubbed with another body is
- The bodies gets charged when rubbed with each other due to transfer of
- The smallest quantity of electricity called as electrostatic unit of charge is present on
- Electric charge on a body at rest produces
- Charge can take only those values, which are integral multiples of charge on
- Which of the following phenomena follows law of conservation of charge?
- If an isolated metallic conductor is positively charged, then its mass will
- A polythene piece rubbed with wool is found to have a negative charge of 4 10^ -7 C. Then, number of electrons transferred is
- When a piece of polythene is rubbed with wool, a charge of -2 10^ -7 C is developed on polythene. What is the amount of mass...
- The law, which gives the force between two electric charges, is
- When the distance between two charged particles is halved, the force between them will become
- In a hydrogen atom the distance between proton and electron is 5.3 10^ -11 m. The electrical force of attraction between them...
- Force between two charges, when placed in free space is 10 N. If they are in a medium of relative permittivity 5, the force...
- The space or region surrounding the static charge in which unit positive charge experiences electric force is
- The intensity at a point due to a charge is inversely proportional to
- A force of 2.25 N acts on a charge of 15 10^ -4 C. The intensity of the electric field at the point is
- The intensity of electric field at a distance of 0.2 m form a charge of 5mC is
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