Electric Charges and Fields questions
340 published questions with worked solutions.
- A charge 'Q' is placed at the centre of a cube. The flux through one face and two opposite faces of the cube is respectively...
- An electron experience a force equal to its weight, when placed in an electric field. The intensity of the field will be [MHT-CET...
- Two point charges +3 , C and +8 , C repel each other with a force of 40 N. If a charge of -5 , C is added to each of them, then...
- An electron of mass 'm' and charge 'q' is accelerated from rest in electric field 'E'. The velocity acquired by electron in...
- A charge of magnitude 3e and mass 2m is moving in an electric field E . The acceleration imparted to the charge is [MHT-CET 2023]
- An electron of mass 'm' and charge 'q' is accelerated from rest in a uniform electric field of strength 'E'. The velocity...
- In hydrogen atom an electron revolves around a proton (in nucleus) at a distance 'r' m. The intensity of electric field due to...
- A charge of magnitude '2e' and mass '4m' is moving in an electric field E . The acceleration imparted to the above charge is...
- 'F' is the force between the two identical charged particles placed at a distance 'Y' from each other. If the distance between...
- When a piece of polythene is rubbed with wool, a negative charge of 4 10^ -7 C is developed on the polythene. The number of...
- An electron of mass 'm' and charge 'q' is accelerated from rest in a uniform electric field of strength 'E'. The velocity...
- In hydrogen atom an electron revolves around a proton (in nucleus) at a distance 'r' m. The intensity of electric field due to...
- Two positive ions, each carrying a charge 'q' are separated by a distance 'd'. If 'F' is the force of repulsion between the ions,...
- Two point charges q_1 and q_2 are 'l' distance apart. If one of the charges is doubled and distance between them is halved, the...
- A charge Q is placed at the centre of a cube. If _0 is the permittivity of vacuum then the flux through one face and two opposite...
- Identify the WRONG statement in the case of electric field lines. [MHT-CET 2020]
- A charge Q is enclosed by a Gaussian surface of radius R. If the radius is doubled then the outward electric flux will [MHT-CET...
- Two small identical metal balls are equally charged and placed at a fixed distance away from each other. They experience the...
- Two point charges +q_1 and +q_2 repel each other with a force of 100 N. Keeping the distance between them unchanged, if q_1 is...
- A particle of mass 'm' and charge 'q' is placed at rest in a uniform electric field 'E' and then released. The momentum gained by...
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