Two small spheres 18 cm apart have
equal negative charges and repel each
other with the force of 6x10-8 N. Find the
total charge on both spheres.
[Ans: q = 2.93x10-7C]
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❏ Using ForMuLaS:-
If two charges are separated by a distance d, then;
The Force of attraction or repulsion between two charges is , given by the coulomb's Law.
❏ Question:-
Q)
Two small spheres 18 cm apart haveequal negative charges and repel eachother with the force of 6x10-8 N. Find thetotal charge on both spheres.
❏ Solution:-
➾ Let, the two charges are and separated by a distance d.
•GiVeN:-
➝ = -q (let)
➝ d=18 cm=0.18 m
➝ Force=
•To Find:-
➝
➔ Now, Using the above coulomb's Formula.
[Now,
[ ]
∴ Charge of Each Sphere = -4.65× C.
∴ Total Charge on both Spheres
= 2×(-4.65× )C.
= -9.3× C.
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