Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
Three identical point charges
+
Q
+Q
+
Q
are placed at the corners of an equilateral triangle of side
a
a
a
. What is the magnitude of the net electrostatic force on any one of the charges? a)
k
2
Q
2
a
2
k\,\sqrt{2}\,\dfrac{Q^{2}}{a^{2}}
k
2
a
2
Q
2
b)
k
3
Q
2
a
2
k\,\sqrt{3}\,\dfrac{Q^{2}}{a^{2}}
k
3
a
2
Q
2
c)
2
k
Q
2
a
2
2k\,\dfrac{Q^{2}}{a^{2}}
2
k
a
2
Q
2
d)
k
Q
2
a
2
k\,\dfrac{Q^{2}}{a^{2}}
k
a
2
Q
2
Browse the problem library