Two Point Charges Are Separated by 12

question 27

Multiple Choice

Two point charges are separated by 12.0 cm and have charges of +5.00 µC and −5.00 µC,respectively.What is the electric field at a point midway between the two charges? (k_e = 8.99 × 10⁹ N·m²/C²)

• A) 3.75 × 10⁶ N/C
• B) 2.5 × 10⁷ N/C
• C) 1.75 × 10⁶ N/C
• D) ​2.13 × 10⁸ N/C
• E) ​zero

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Definitions:

Diminishing Returns

The principle stating that as one factor of production is increased while others are held constant, a point will eventually be reached where additions of the factor yield progressively smaller increases in output.

Value Added

The increase in worth of a product or service as a result of a particular stage of production or as it moves through the supply chain.

Marginal Product

The increase in output resulting from a one-unit increase in the amount of a single input used, keeping all other inputs constant.

Premium

A premium is the amount paid for an insurance policy, representing the price for the insurance coverage or the amount over the nominal value of something.