Question
Asked Jan 15, 2020
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There are two charges q1 = 10 μC and q2 = 70 μC placed 0.5 m apart and fixed in place. q1 is on the left and q2 is on the right. How far from q2 should q3 be placed so that it experiences no force? q3 is positive. Hint: q3 will be between q1 and q2.

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Expert Answer

Step 1

Draw the following diagram representing the system of charges.

Physics homework question answer, step 1, image 1
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Step 2

Let F31 be the force on charge q3 due to q1, and F32 be the force on charge q3 due to q2, r31 be the distance of charge q3 from q1, and , r32 be the distance of charge q3 from q2.

Write the expression for the force experienced by the charge q3 due to q1.

Physics homework question answer, step 2, image 1
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Step 3

Write the expression for the force experienced by the charge ...

Physics homework question answer, step 3, image 1
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Science

Physics

Electric Charges and Fields

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