A body of mass 1g and carrying a charge `10^(-8)`C passes from two points P and Q. P and Q are at electric potentials 600 V and 0 V respectively. The velocity of the body at Q is 20 `cms^(-1)`. It velocity in `ms^(-1)`at P is

A body of mass one gram and carrying a charge 10^(-8)C passes through two points P and Q .The electrostatic potential at Q is OV .The velocity of the body at Q is 0.2ms^(-1) and an P is sqrt(0.028ms^(-1) .The potential at P is

Two points P and Q are maintained at the potentials of 10 V and - 4V, respectively. The work done in moving 100 electrons from P to Q is

Two points P and Q are maintained at the potentials of 10V and -4V, respectively. The work done in moving 100 electrons from P to Q is:

Two points P and Q are maintained at the potentials of 10V and -4V, respectively. The work done in moving 100 electrons from P to Q is:

A ball of mass 1g and charge 10^(-8) C moves from a point A whose potential is 600V to the point B whose potential is zero. Velcoity of the ball at the point B is 20 cm s^(-1) . The velocity of the ball at the point is

Potentials of points P and Q are 10 V and - 4 V respectively. Work done in taking 100 electrons from P to Q ........