1) Three positive point charges $q_1$=+4.50 µC, $q_2$= +2.50 µC and $q_3$=+3.50 µC are placed at the opposite corners of a rectangle of sides a=40 cm and b=80 cm, as shown in the figure. ($k = \frac{1}{4\pi\epsilon_0}$ = 8.99×10$^9$ N•m$^2$/C$^2$) What is the work required to bring a charge $q_4$ = -1.50 µC from infinity to the lower right corner?
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The electric potential energy of a charge at a certain point is given by the equation: U = k * (q1 * q2) / r where U is the electric potential energy, k is the electrostatic constant (9 * 10^9 Nm^2/C^2), q1 and q2 are the charges, and r is the distance between Show more…
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