Three point charges Q 1 , Q 2 , and Q 3 are arranged to form an equilateral tria

Question

Three point charges Q1, Q2, and Q3 are arranged to form an equilateral triangle as shown in the figure below. The signs of these charges are unknown.

(a) A test charge Qtest is now placed at point A. If the net force on the test charge is zero, what might be the signs of Q1, Q2, and Q3? Pick the correct option(s). (Select all that apply.)

Q1, Q2, and Q3 are all positive. Q1, Q2, and Q3 are all negative. Q1 and Q2 are positive, and Q3 is negative. Q1 is positive, and Q2 and Q3 are negative. Q1 is positive, Q2 is negative, and Q3 is positive. Q1 is negative, and Q2 and Q3 are positive.

(b) Repeat part (a), but now the test charge is placed at point B.

(c) Repeat part (a) again, but with the test charge at point C.

Explanation / Answer

100 % these are the right answer . look at them then rate please if test charge is at A then two options are Q1 is positive, and Q2 and Q3 are negative. Q1 is negative, and Q2 and Q3 are positive. if test charge is at B then two options are Q1, Q2, and Q3 are all positive. Q1, Q2, and Q3 are all negative. if test charge is at C then two option will again same as for A Q1 is positive, and Q2 and Q3 are negative. Q1 is negative, and Q2 and Q3 are positive.

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