Asmall sphere has a harge of 9uc and other small sphere has a charge of 4uc.

the distance between their centers is 6cm

what is the electrical force between them?

Electrical force, F = 90 N

Explanation:

It is given that,

Charge on sphere 1,

Charge on sphere 2,

Distance between two spheres, d = 6 cm = 0.06 m

Let F is the electrical force between them. It is given by the formula of electric force which is directly proportional to the product of charges and inversely proportional to the square of distance between them such that,

F = 90 N

So, the electrical force between them is 90 N. Hence, this is the required solution.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

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