Separation between two parallel pates facing each other is 2 cm and surface are `l^2 = 100 cm^2`. If `10^6` electrons of velocity `10^8 ms^-1` projected into the gap between the plates kept at a potential difference of 400 V, find the deflection of an electron.

A charge of 2 C moves between two plates maintained at a potential difference of 1 volt. What is the energy acquired by the charge?

A parallel plate capacitor has a capacitance of 2muF . A slab of dielectric constant 5 is inserted between the plates and the capaitor is charged to 100 V and then isolated. What is the new potential difference, if the dielectric slab is removed?

Two parallel plates are 5 cm apart and a potential difference of 6- V is set up across them. Find the electric field intensily between the two plates.

Two parallel plate air capacitors have their plate areas 100 and 500 cm^(2) respectively. If they have the same charge and potential and the distance between the plates of the first capacitor of 0.5 mm, what is the distance between the plates of second capacitor ?

A parallel-plate capacitor having plate are 100 cm ^2 and separation 1.0 mm holds a charge of 0.12 muC when connected to a 120 V battery. Find the dielectric constant of the material filling the gap.

Two identical plane metallic surfaces A and B are parallel to each other in air separated by a distance of 1 cm as shown in the fig. Surface A is given a postive potential 10 V and the outer surface of B is earthend What is the magnitude and direction of the uniform electric field between points Y and Z?

A uniform electric field of strength 2xx10^3NC^-1 is established between two parallel plates of length 0.1 m held horizontally at a distance 0.02 m apart. An electron is projected at a speed of 6xx10^6 ms^-1 making an angle 45^@ as shown in the figure The field is directed vertically upwards. Will the electron strike the either plate? If it strikes the plate, where does it do so?

Two electrons have bene removed from each atom. Find the distance between two such atoms, if they repel each other with a fore of 8.8 xx 10^-9N , when placed in free space.