Three Equal Negative Point Charges Are Placed at Three of the Corners

question 32

Multiple Choice

Three equal negative point charges are placed at three of the corners of a square of side d as shown in the figure. Which of the arrows represents the direction of the net electric field at the center of the square?

• A) A
• B) B
• C) C
• D) D
• E) The field is equal to zero at point P.

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Definitions:

Naturalistic Observation

An investigative approach where individuals are watched in their natural settings without any interference from the person observing.

Experiment

A method of investigation in the sciences or social sciences in which variables are manipulated to observe the effect on some behavior or condition.

Testable Prediction

A testable prediction is a specific statement about the expected outcome of a scientific experiment, based on a hypothesis or theory, that can be observed and measured.

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effects on dependent variables.