DP Physics (first assessment 2025)

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Question 21N.1A.SL.TZ0.18

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1A.SL.TZ0.18
Level SL Paper 1A Time zone TZ0
Command term Question number 18 Adapted from N/A
18.
[Maximum mark: 1]
21N.1A.SL.TZ0.18

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 +Q.

The magnitude of the electric field produced at P by the charge +Q alone is E.

What is the total electric field at P?


A.  E2 to the right

B.  E2 to the left

C.  3E2 to the right

D.  3E2 to the left

[1]

Markscheme

C

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