Answer:
the electric potential at an infinite distance is the workdone in moving a charge from one point at an infinite distance to another point at an infinite distance. This will be zero.
Explanation:
Electric potential is given by
E= kQ/r²
If r becomes ∞, then
E= kQ/(∞)²= 0
So electric potential at an infinite distance away from the rod is zero
To solve this problem we will apply the principle of conservation of energy. For this purpose, potential energy is equivalent to kinetic energy, and this clearly depends on the position of the body. In turn, we also note that the height traveled is twice that of the rigid rod, therefore applying these concepts we will have
Therefore the minimum speed at the bottom is required to make the ball go over the top of the circle is 4.67m/s
That completely depends on the voltage waveform
that's being impressed across the capacitor.