The red charge is 6 m C, the blue is -2 m C and the green charge has a charge of

Question

The red charge is 6 mC, the blue is -2 mC and the green charge has a charge of -5.3 mC. What is the potential energy of the configuration to the nearest tenth of a millijoule? and what is the potential at the point x=1 and y=1 to the nearest volt?

The correct answer should be -83 millijoules and -8264 volts

The red charge is 6 Mu C, the blue is -2 Mu C and the green charge has a charge of -5.3 Mu C. What is the potential energy of the configuration to the nearest tenth of a millijoule? and what is the potential at the point x=1 and y=1 to the nearest volt? The correct answer should be -83 millijoules and -8264 volts

Explanation / Answer

P.E of the configuration = -k*2*6*10^-6/2 - k*5.3*6*10^-6/2*sqrt(2) + k*5.3*2*10^-6/2 where k = 9*10^9 so, P.E = -0.083 J = -83 mJ

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