Voltage remain same on both sphere?

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When two spheres with different radii and charges are connected by conducting wires, their electric potentials equalize, resulting in Va = Vb. This phenomenon occurs because voltage can be likened to pressure, prompting current to flow until the pressures are balanced. The equalization of electric potential is essential for maintaining equilibrium in the system. The differing charges and sizes do not affect the final voltage, as it is determined by the connection through the conducting wire. Thus, the electric potential remains the same on both spheres when they are linked.
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When two spheres A and B (having different radius and different charge on their) connected

through a conducting wires. Then WHY their electric potential remains same i.e Va = Vb on

both the sphere.
 
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In simple terms, voltage is analogous to pressure, so current flows until the pressures are equal.
 
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