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pallavi pradeep bhardwaj Grade: 12
        

what is the magnitude of a point charge due to which the electric feild 30 cm away has the magnitude 2 newton/coulomb

7 years ago

Answers : (1)

Pratham Ashish
17 Points
										

hi,


electrric field due to apoint charge at a distance x from it


                =  1/4¶ε q/ x^2


              2  = 8.9 *10^9  *q  /  (.30)^2 


               q = 2* .09 / 8.9   * 10^-9


                  =  2.02 * 10^-11   C

7 years ago
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