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Electric Field Effects on Charge
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If two positive charges, each of 2 µC, are placed 0.5 meters apart, what is the resultant electric field strength at a point located 0.25 meters from the center of the line connecting the two charges?

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Choose AnswerChoose the Best Answer

A

28800 N/C

B

14400 N/C

C

7200 N/C

D

3600 N/C

Understanding the Answer

Let's break down why this is correct

The electric field from a single charge is k·q/r². Other options are incorrect because This answer uses the correct field from one charge but forgets to add the second field; It mistakenly uses r² twice, as if the distance were squared again.

Key Concepts

Superposition Principle
Field Strength and Distance
Topic

Electric Field Effects on Charge

Difficulty

medium level question

Cognitive Level

understand

Deep Dive: Electric Field Effects on Charge

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Definition
Definition

Dielectric materials impact the flow of charge in electric fields. When a dielectric is inserted, charge flows onto plates, altering the capacitor's behavior. Understanding this process helps in designing capacitors with large capacitance while considering factors like breakdown electric field.

Topic Definition

Dielectric materials impact the flow of charge in electric fields. When a dielectric is inserted, charge flows onto plates, altering the capacitor's behavior. Understanding this process helps in designing capacitors with large capacitance while considering factors like breakdown electric field.

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