A +50-μC Point Charge Is Placed at the 0 Cm Mark

question 36

Multiple Choice

A +5.0-μC point charge is placed at the 0 cm mark of a meter stick and a -4.0-μC charge is placed at the 50 cm mark.What is the net electric field at the 30 cm mark? (k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C²)

• A)4.0 × 10⁵ N/C
• B)5.0 × 10⁵ N/C
• C)9.0 × 10⁵ N/C
• D)1.4 × 10⁶ N/C

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