Electrostatics ...

The work done in bringing a 20 coulomb charge from point A to point B for distance 0.2 m is 2 J. The potential difference between the two points will be (in volt)

A hollow sphere of charge does not produce an electricfield at any

Kinetic energy of an electron accelerated in a potential difference of 100 V is

If identical charges (–q) are placed at each corner of a cube of side b, then electric potential energy of charge(+q) which is placed at centre of the cube will be

An electron having charge \'e\' and mass \'m\' is moving in a uniform electric field E. Its acceleration will be

Cathode rays travelling from East to West enter into region of electric field directed towards North to South in the plane of paper. The deflection of cathode rays is towards

A simple pendulum of period T has a metal bob which is negatively charged. If it is allowed to oscillate above a positively charged metal plate, its period will

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 kV,its kinetic energy will be

An electron moving with the speed 5 × 10⁶ m per sec is shooted parallel to the electric field of intensity 1× 10³ N/C. Field is responsible for the retardation of motion of electron. Now evaluate the distance travelled by the electron before coming to rest for an instant (mass of e= 9 × 10^–31 kg. charge = 1.6 × 10^–19 C)