A soap bubble is given a negative charge, then its radius
A soap bubble is given a negative charge, then its radius increases.
Month: December 2021
A parrot comes and sits on a bare high power line. It will
A parrot comes and sits on a bare high power line. It will not be affected practically.
A glass rod acquired charge by rubbing it with silk cloth. The charge on glass rod is due to
A glass rod acquired charge by rubbing it with silk cloth. The charge on glass rod is due to Friction
What is the value of minimum force acting between two charges placed at 1m apart from each other
What is the value of minimum force acting between two charges placed at 1m apart from each other Ke2
Electric field due to an electric dipole is
Electric field due to an electric dipole is cylindrical symmetric
Electric field due to a single charge is
Electric field due to a single charge is asymmetric in nature.
The value of absolute permittivity of free space is
The value of absolute permittivity of free space is 8.85×10-12C2N-1m-2
Charge on a body which carries 200 excess electrons is
Charge on a body which carries 200 excess electrons is -3.2 x 10-17C
The cause of quantization of electric charge is
The cause of quantization of electric charge is transfer of integral number of electrons
A parallel plate capacitor stores a charge Q at a voltage V. Suppose the area of the parallel plate capacitor and the distance between the plates are each doubled then which is the quantity that will change?
A parallel plate capacitor stores a charge Q at a voltage V. Suppose the area of the parallel plate capacitor and the distance between the plates are each doubled then which is the quantity that will change Energy density
If voltage applied on a capacitor is increased from V to 2V, choose the correct conclusion.
If voltage applied on a capacitor is increased from V to 2V, choose the correct conclusion C remains same, Q doubled
Two identical conducting balls having positive charges q1 and q2 are separated by a center to center distance r. If they are made to touch each other and then separated to the same distance, the force between them will be
Two identical conducting balls having positive charges q1 and q2 are separated by a center to center distance r. If they are made to touch each other and then separated to the same distance, the force between them will be more than before.
Which charge configuration produces a uniform electric field?
uniformly charged infinite plane charge configuration produces a uniform electric field.
Two spherical conductors each of capacity C are charged to potential V and -V. These are then connected by means of a fine wire. The loss of energy is
Two spherical conductors each of capacity C are charged to potential V and -V. These are then connected by means of a fine wire. The loss of energy is CV2
A capacitor has some dielectric between its plates, and the capacitor is connected to a dc source. The battery is now disconnected and then the dielectric is removed, then
A capacitor has some dielectric between its plates, and the capacitor is connected to a dc source. The battery is now disconnected and then the dielectric is removed, then (c) electric field will increase.