Physics

Problem

Three point charges of equal magnitude

q

are fixed on a straight line as follows: • Charge A:

+q

x = 0

• Charge B:

-q

x = 0.50\,\text{m}

• Charge C:

+q

x = 1.00\,\text{m}

A small positive test charge

q_0

is placed at

x = 0.75\,\text{m}

. Without doing explicit calculations, rank the magnitudes of the individual electric forces exerted on

q_0

by charges A, B, and C from greatest to least. a)

F_A > F_B = F_C

F_C > F_A > F_B

F_B = F_C > F_A

F_B > F_A > F_C