Point Charges +4

question 15

Multiple Choice

Point charges +4.00 μC and +2.00 μC are placed at the opposite corners of a rectangle as shown in the figure. What is the potential at point B due to these charges? (k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C²)

• A) 8.99 kV
• B) 11.2 kV
• C) 89.9 kV
• D) 899 kV
• E) 112 kV

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Definitions:

Preoperational Stage

A stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, marked by rapid language acquisition and symbolic thinking.

Age

A measure of the time an individual or object has existed, often used to describe developmental stages in humans.

Egocentrism

An important feature of preoperational thought: the inability to distinguish between one’s own and someone else’s perspective.

Animism

A facet of preoperational thought: the belief that inanimate objects have lifelike qualities and are capable of action.