A +50-µC Point Charge Is 12 Cm from a -5 $\vec { E }$

question 64

Multiple Choice

A +5.0-µC point charge is 12 cm from a -5.0-µC point charge.What is the magnitude of the $\vec { E }$ field they produce at the point on the line connecting them where their electric potential (relative to infinity) is zero? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)0 N/C
• B)12.5 MN/C
• C)0.75 MN/C
• D)25 MN/C
• E)1.5 MN/C

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Definitions:

Basin

1. A low-lying area or an area in which sediments accumulate with no surface outlet. 2. A structural feature toward which rock strata are inclined in all directions.

Metamorphic Grade

The intensity of heat and pressure conditions that have altered a rock, affecting its mineral composition and structure during the process of metamorphism.

Banded Gneissic Rock

A metamorphic rock characterized by alternating light and dark mineral bands, indicating high-grade metamorphism.

Mica Crystals

Minerals characterized by their sheet-like structure and ability to split easily along flat planes, commonly found in igneous and metamorphic rocks.