A positively charged ball hangs from a long silk thread. Electric filed at a certain point (at the same horizontal level of ball) due to this charge i

Question

A positively charged ball hangs from a long silk thread. Electric filed at a certain point (at the same horizontal level of ball) due to this charge i

A positively charged ball hangs from a long silk thread. Electric filed at a certain point (at the same horizontal level of ball) due to this charge is E. Let us put a positive test charge `q_(0)` at this point and measure `F//q_(0)` on this charges. then E
A. `gtF//q_(0)`
B. `=F//q`
C. `ltF//q_(0)`
D. cannot be estimated

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - a
due to presence of test charge `q_(0)` in front of positively chrged ball there would be redistriubtion of charge on the ball In the redistribution of chrge , there will be less chrge on front lhalf surface and more charge on the back half surface as result the net force F between ball and charge will decresse i.e the electric field is decreased . Thus actual electric field will be greater than `F//q_(0)`