Question

a cube of side 'b' has charge 'q' at each of its vartices .the eletrical field oat centre of the cube will be a)q/b^2. b)q/2b^2. c)32q/b^2. d)zero​

Answer 1

Answer:

o

Explanation:

as the charges are on the corners are equal so they will exert equal amount of force and hence the net electric field will get cancelled . if the chrges were different then the vector sum would be duffeent hence different electric field . so whenever u see a square or rectangle next with same chrges , mark the answer blindly as 0 . in case of calculating gravitation feild and given same masses do the same .

ciao