In: Physics
Two charges — q1 = 2.1 × 10-6C, q2 = 5.4 × 10-6C — are separated by a distance of d = 3.75 m.
At what distance, r in meters, from the first charge is the electric field zero?

Electric field direction is always directed away from a positive charge.
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Refer the figure
Consider the point at distance 
 from the first charge.
Given that the net electric field at that point is zero.







Take square root on both sides











ANSWER: 
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