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Question 22

From Physics HL Paper 1A (May 2025, TZ2)

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  1. A charge +Q and a charge +2Q are a distance 3x apart. Point P is on the line joining the charges, at a distance x from one of the charges as shown.
Diagram for question 22 showing two charges +Q and +2Q separated by a total distance of 3x. Point P is marked on the line connecting the charges, at a distance x from +Q and 2x from +2Q.
Diagram for question 22 showing two charges +Q and +2Q separated by a total distance of 3x. Point P is marked on the line connecting the charges, at a distance x from +Q and 2x from +2Q.

What is the electric field strength E at P?

Table presenting four options (A, B, C, D) for the electric field strength E at point P, each with a magnitude (kQ/2x^2 or kQ/x^2) and a direction (left or right).
Table presenting four options (A, B, C, D) for the electric field strength E at point P, each with a magnitude (kQ/2x^2 or kQ/x^2) and a direction (left or right).
Magnitude of EDirection of E
A.kQ/2x²left
B.kQ/2x²right
C.kQ/x²left
D.kQ/x²right

Textbook topics in this question

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