Answer
See explanation
Work Step by Step
Functions of salt-bridge are
$(a)$ to complete the electrical circuit by allowing the ions to flow from one solution to the other without mixing of two solutions.
$(b)$ to maintain the electrical neutrality of the solutions on the two half cells.
$(c)$ to prevent mixing of solutions: it keeps the solutions in the two half-cells from directly mixing, which could lead to unwanted side reactions.
The purpose of a salt bridge is not to move electrons from the electrolyte, rather to maintain charge balance because the electrons are moving from one half cell to the other. The electrons flow from the anode to the cathode thus if a salt bridge is removed between the half cells, Voltage becomes zero.
