Point Charges of Equal Magnitudes (25 NC) and Opposite Signs

question 27

Multiple Choice

Point charges of equal magnitudes (25 nC) and opposite signs are placed on (diagonally) opposite corners of a 60-cm × 80-cm rectangle. If point A is the corner of this rectangle nearest the positive charge and point B is located at the intersection of the diagonals of the rectangle, determine the potential difference, VB − VA.

• A)−47 V
• B)+94 V
• C)zero
• D)−94 V
• E)+47 V

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Definitions:

Major

Describing the most significant or largest component or pathway in a series of compounds or reactions.

Primary Alcohols

Organic compounds that contain a hydroxyl group (-OH) bound to a primary carbon atom, which is connected to only one alkyl group.

Methyl Iodide

A volatile and dense organoiodine compound with the chemical formula CH3I, used as a methylation agent in organic synthesis.

Nucleophilic Target

An atom or region in a molecule that attracts and bonds with nucleophiles, compounds with a pair of electrons to donate.