# The electric field that is 0.25m from a small sphere is 450n/c toward the sphere. a. Is the charge positive or negative? Why? b. What is the magnitude of the charge on the sphere?

Its b bc its the volume of the sphere

PART 1)A small sphere is considered to be a point chargeSo here if electric field is indicating the position of charge itself or it is towards the charge then it must be a negative charge on the spherePART 2)Electric field due to a point charge is given byhere = distance of charge from the point where field strength is required = 0.25 mnow from the above equation we can saySo magnitude of charge is 3.125 nC on the small sphere

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