According to the figure below, four particles form a square. The charges are q1 q4 = q and q2 = q3 = Q. (a)What is Qlq if the net electrostatic force on particles 4 is zero? (b) Is there any value of q that makes the net electrostatic force on each of the four particles zero? Explain. a a 3 4 a
According to the figure below, four particles form a square. The charges are q1 q4 = q and q2 = q3 = Q. (a)What is Qlq if the net electrostatic force on particles 4 is zero? (b) Is there any value of q that makes the net electrostatic force on each of the four particles zero? Explain. a a 3 4 a
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Transcribed Image Text:According to the figure below, four particles form a square. The charges are q1 = q4 = q and q2
= q3 = Q. (a)What is Qlq if the net electrostatic force on particles 4 is zero? (b) Is there any value
of q that makes the net electrostatic force on each of the four particles zero? Explain.
a
4
a
NOTE: Ke= 8.99x 10(power 9) N.m2/C2
According to the figure below, a thin glass rod forms a semicircle of radius r=10 cm. Charge is
uniformly distributed along the rod, with +q= 5pC in the upper half and -q-5pC in the lower half.
What are the (a)magnitude and (b) direction (relative to the positive direction of the x axis) of the
electric field at P, the center of the semicircle? Note: Firstly, drive the mathematical formula of
Electric field
+g
-4
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