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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

10 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

10 years ago
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