two charges -0.2microfarad and -0.8microfarad are held 30milimetres apart in air. A test charge of 1picofarad is moved along the line joining the two charges. Where will it experience zero resultant force
rosemary , 5 Years ago
Grade 12th pass
1 Answers
PAURUSH GUPTA
Last Activity: 5 Years ago
10 mm from -0.2uF charge .
Solve using F=kq1q2/r^2
let distance from 0.2 be x. therefore distance from 0.8 is 30-x.
Put values of qi and r and equate to get answer
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