Yeah, I too don't understand how the charge is distributed. Vela, I get your point, but I could not get what kind of charge distribution the solution refers to. The solution (which was very brief and without details) just mentioned the line which I mentioned above : "when the two wires form a...
Well this isn't exactly 'homework', this problem is taken from a physics competition.
^^ Actually, the solution to this problem says that " when the two wires form a capacitor charges reside only on the inner side;' Then Gauss Law has been used to calculate the field and then the electric...
Homework Statement
Consider two long parallel and oppositely charged thick wires of radius d with their central axes separate by a distance D apart. Obtain an expression for the capacitance per unit length of this pair of wires
Homework Equations
\oint \vec{E}\cdot d\vec{a}...
Homework Statement
A small sphere A of radius r and mass m rolls without slipping inside a large hemispherical bowl of radius R. The sphere A starts from rest at the top point on the rim of the hemisphere. Find the normal force exerted by small sphere when it touches the bottom of the...