A Point Charge Q = 7

question 32

Multiple Choice

A point charge Q = 7.00 × 10^-9 C is placed at the origin of an xy-coordinate system. What is the electric field intensity E at a distance of x = 30 cm from this charge? (Use k = 9 × 10⁹ Nm²/C².)

• A) 100 N/C
• B) 400 N/C
• C) 500 N/C
• D) 600 N/C
• E) 700 N/C

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Definitions:

External Validity

The extent to which the results of a study can be generalized to other situations, people, settings, and times.

Experimental Design

The planning of an experiment to ensure that it can test hypotheses effectively and produce valid and reliable results.

Attrition

The loss of participants during the course of a study, which can potentially bias the results.

Maturation

The process of growth or development, often in the context of organisms or psychological development in research.