You typing makes we wonder i i i
force is inversley prop
10E-5/F=( 3^2/20^2)
F=400/9 E-5 N at 3 cm
one 100 cm,that is 5 times as far..
F=1E-5 /25=4E-7 at 100cm
Two charges repel each other with a force of 10-5newton when they are 20cm apart. what is the force on each of them are i 3cm apart and ii when they are 100cm
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