Three point charges Q1 = 2.8 muC, Q2 = 4.8 muC and Q3 = 3.8 muC, are arranged as

Question

Three point charges Q1 = 2.8 muC, Q2 = 4.8 muC and Q3 = 3.8 muC, are arranged as shown.

Q1 located L distance on -X axis

Q2 located L distance on +Y axis

Q3 located 2L distance 0n -Y axis

if L = 1.5 meters

What is the total electric potential energy of this system?

____________________ J

Three point charges Q1 = 2.8 muC, Q2 = 4.8 muC and Q3 = 3.8 muC, are arranged as shown. Q1 located L distance on -X axis Q2 located L distance on +Y axis Q3 located 2L distance 0n -Y axis if L = 1.5 meters What is the total electric potential energy of this system?

Explanation / Answer

TE = kq1q2/ r12 + kq2q3/r23 + kq1q3/r13

      = 9*10^9*10^(-12) ( 2.8*4.8/root2*1.5 + 4.8*3.8/3*1.5 + 2.8*3.8/root5*1.5)

      = 0.122 J

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