net electric field at given point
E = electric field due to q1 - electric field due to q2
E = k q1 / r1^2 - k q2 / r2^2
E = 9*10^9* 10^-6* (1.9/ 1.3^2 - 1.3/ 1.8^2)
E = 6507.23 N/C
force due to the above electric field
F = qE
F = 1.4*10^-6* 6507.23
F = 9.11*10^-3 N
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The figure shows two point charges. Calculate the magnitude of the electric field at point P....
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