The p.d between two plates separated by a distance of `1 mm is 100V`.The force on an electron placed in between the plates is

An electron is fired through a region of crossed electric and magnetic field (0.05 T) . The electric field is formed between two plates separated by a distance of 2 mm having a P.D. of 125 V . The speed of the electron is

The potential difference between two parallel plates is 10^(4) V. If the plates are separated by 0.5 cm, the force on an electron between the plates is

An electron having charge e and mass m starts from the lower plate of two metallic plates separated by a distance d . If the potential difference between the plates is V , the time taken by the electron to reach the upper plate is given by .

An electron having charge e and mass m starts from the lower plate of two metallic plates separated by a distance d . If the potential difference between the plates is V , the time taken by the electron to reach the upper plate is given by .

If Q is the charge on the pates of a capacitor of capacitances C,V the potential difference between the plates, s the area of each plate and d the distance between the plates, the force of attraction between the plates is-

An electron enters between two horizontal plates separated by 2 mm and having a potential difference of 1000V . The force on electron is

A pallel -plate capacitor whith the plate area 100cm^2 and the separation between the plate 1.0cm is connected across a battery of emf 24 volts .Find the force of attraction between the plates.