A copper ball of density `8.6 gcm^(-3), 1 cm` is diameter is immersed in oil of density `0.8 dcm^(-3)`. If the ball remiand suspended in oil in a uniform electric field of intensity `36000NC^(-1)` acting in upward direction, what is the charge on the ball ?

A copper ball of density 8.6 g cm^-3 cm in diameter is immersed in oil of density 0.8 g cm^-3 . If the ball remains suspended in oil in a uniform electric field of intensity 36,000 NC^-1 acting in upward direction, what is the charge on the ball?

A copper ball of density 8.6 g//cc amd 1 cm in diameter is immersed in oil of density 0.8 g//cc . What is the charge on the ball, if it remains just suspended in oil in electric field of intensity 3600 V//m acting in the upward direction ?

A charged oil drop weighing 1.6 xx 10^(-15) N is found to remain suspended in a uniform electric field of intensity 2 xx 10^3NC^(-1) . Find the charge on the drop.

A copper(density of Cu= p_(c) ) ball of diameter dis innnersed in oil of density p_(0) . What is the charge on the ball if, in a homogeneous elecltric field E directed vertically upward, it is suspended in the oil ? (k=pid^(3)(p_(c)g)/(E)) :

In the figure shown a ball is suspended from the ceiling of a room in a uniform electric field of magnitude 2xx10^(4) V/m . If the mass of the ball is 25 g and the charge on the ball is 3muC . The angle theta is (g=9.8ms^(-2))

A charged cork ball of mass m is suspended on a light sting in the presence of a uniform electric field as shown in fig. When E=(A hat i+B hat j)NC^(-1) , Where A and B positive numbers, the ball is in equilibirum at theta . Find (a) the charge on the ball and (b) the tension in the string.