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Question 31

From Physics HL Paper 1A (May 2025, TZ3)

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  1. Two isolated positive point charges Q1Q_1 and Q2Q_2 are equidistant from a third charge Q3Q_3 as shown. The force on Q3Q_3 due to Q1Q_1 is FF. The force on Q3Q_3 due to Q2Q_2 is 2F2F.
Diagram showing three point charges Q1, Q2, and Q3 arranged in a right-angled triangle configuration. Q1 and Q2 are equidistant from Q3.
Diagram showing three point charges Q1, Q2, and Q3 arranged in a right-angled triangle configuration. Q1 and Q2 are equidistant from Q3.

What is the resultant force on Q3Q_3?

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