The distance between the dipole's loads is d=2mm;the field's intensity, in a point set at a distance of r=10mm,from the loads, is E=2V. Loads' sizes?

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The resultant field:

 E=2E1*cos alfa=2*[q/()4*pi*epsilon*r^2]*[(d/2)/r]=q*d/(4*pi*epsilon*r^3)

q=4*pi*epsilon*r^3*E/d=0.11nC

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