Home › AP EAPCET (Engineering) › Physics › Electric Charges and Fields › Charges of 2 microcoulomb and 3 microcoulomb lie…
Charges of 2 microcoulomb and 3 microcoulomb lie 0.3 m apart. What is the force?
A0.06 N
B6 N
C1.8 N
D0.6 N
Answer & Solution
Correct answer: D. 0.6 N
F = 9 x 10^9 x 2e-6 x 3e-6 / 0.09 = 0.6 N, repulsive since both charges are positive.
Related questions
Which law remains valid for moving charges, unlike Coulomb's law?Which extra assumption yields Coulomb's law from Gauss's law?Gauss's law is one of which set of fundamental equations?Who first formulated what is now called Gauss's law, in 1773?The zero field inside a charged shell confirms which feature of Coulomb's law?Outside a charged thin shell, the field acts as if the charge sat where?A uniformly charged thin spherical shell produces what field at points inside it?For a closed surface, which direction is taken for the area element vector?