A Point Charge Q = -500 NC and Two Unknown

question 56

Multiple Choice

A point charge Q = -500 nC and two unknown point charges, q₁ and q₂, are placed as shown in the figure. The electric field at the origin O, due to charges Q, q₁ and q₂, is equal to zero. The charge q₁ is closest to

• A) 130 nC.
• B) 76 nC.
• C) 150 nC.
• D) -76 nC.
• E) -130 nC.

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