`10^6` electrons are given to a pith ball. The charge of the ball will be

A copper ball of radius 1 cm and work function 4.47eV is irradiated with ultraviolet radiation of wavelength 2500 Å. The effect of irradiation results in the emission of electrons from the ball, Further the ball will acquire charge and due to this there will be a finite value of the potential on the ball. The charge acquired by the ball is :

calculate the change in electrostatic force between the two balls, if charge on both the balls are increased by 10%.

[" 1.A Copper atom has "29" electrons revolving around the nucleus.A copper ball contains "4times10^(23)],[" atoms What fraction of the electrons be removed to give the ball a charge of "+9*6 mu C" ? "]

A Copper atom has 29 electrons revolving around the nucleus. A copper ball contains 4 xx 10^(23) atoms. What fraction of the electrons be removed to give the ball a charge of +9.6 mu C ?

A Copper atom has 29 electrons revolving around the nucleus. A copper ball contains 4 xx 10^(23) atoms. What fraction of the electrons be removed to give the ball a charge of +9.6 mu C ?

Two identical small plastic balls are rubbed against a piece of wool such that both of them received approximately 2 xx 10^12 and 2.5 xx 10^12 electrons respectively. Now both the charged balls are kept at a distance of 25 cm in air. Calculate the nature and magnitude of force between both the balls

Two pith-balls each of mass 5xx10^-4 kg are suspended from the same point by silk threads 0.2 m long equal charges are given to the balls, which separate, until the threads enclose an angle of 30^@ , Calculate the charge on each pith-ball.

A 0.50 gm ball carries a charge of magnitude 10mu C . It is suspended by a string in a downward electric field of intensity 300N/C. If the charge on the ball is positive, then the tension in the string is (g = 10 ms^(-2))