Question

1.  Three charged particles are arranged in a line as shown in figure below. Charge A = -5 μC, charge B = +10 μC and charge C = -12 μC.  

a.  Calculate the net electrostatic force on particle A due to the other two charges.

 

 

 

 

 

b.  Calculate the net electrostatic force on particle B due to the other two charges.

 

 

 

c.   Calculate the net electrostatic force on particle C due to the other two charges 

Answer 1

$F_A=kq_A\frac{q_B+q_C}{r_A^2}=21~\mu N,$

$F_B=kq_B\frac{q_A+q_C}{r_B^2}=14~\mu N,$

$F_C=kq_C\frac{q_A+q_B}{r_C^2}=35~\mu N.$