Two point charges (+10.4 nC and ?10.4 nC) are located 8.98 cm apart. Let U = 0 w
ID: 1999478 • Letter: T
Question
Two point charges
(+10.4 nC and ?10.4 nC)
are located
8.98 cm
apart. Let
U = 0
when all of the charges are separated by infinite distances.
What is the potential energy if a third point charge
q = ?4.5 nC
is placed at point a?Two point charges
(+10.4 nC and ?10.4 nC)
are located
8.98 cm
apart. Let
U = 0
when all of the charges are separated by infinite distances.
What is the potential energy if a third point charge
q = ?4.5 nC
is placed at point a?
Two point charges (+10.4 nC and-10.4 nC) are located 8.98 cm apart. Let U-0 when all of the charges are separated by infinite distances. What is the potential energy if a third point charge q 4.5 nC is placed at point a? 8.98 cm 8.98 Cm 4.494.494.49 cm Cm cmExplanation / Answer
Total Potential energy is
E = kq1q2/r12 + k q1q3/r13
E = k ( 10.4*(-4.5)*10-18/0.0449) + ( -10.4*(-4.5)*10-18/0.0898)
E = - 9*10^9*10.4*4.5*10^-18 / 0.0898
E = -4.68 * 10^-6 J
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