# What happens if the salt bridge is removed?

By completing the circuit, the salt bridge allows current to pass. If the salt bridge is removed, there will be no current and the voltage will be zero. The metal parts of the battery act as wires to carry current from one side of the battery to the other.

Batteries are the only storage device that can deliver a constant voltage over time. This is important because it allows batteries to be used as power sources for devices that need steady electricity, such as lights and motors. Batteries can't supply peak currents (such as those needed by radios or cameras) so they must contain enough electrical energy to meet these demands. Batteries also cannot store large quantities of energy, so they must be kept at relatively low levels of charge.

As discussed in the video, batteries have two main terminals: positive and negative. Electricity flows from the positive terminal to the negative terminal. When a battery is new, it contains all its electrons on the negative side. Any electron holes (missing electrons) on the positive side are made good with electrolyte molecules added during production. As more and more electricity flows through the battery, more electrolyte is consumed until finally the hole on the positive side is too big to be filled with electrolyte and the battery dies.

## What happens to voltage if the salt bridge is removed?

A salt bridge's aim is not to transport electrons from the electrolyte, but rather to maintain charge balance since electrons are going from one half cell to the other. Because electrons travel from the anode to the cathode, removing a salt bridge between the half cells causes the voltage to drop to zero. Since there is no longer a path for current to flow, the cells stop generating electricity.

When looking at what would happen to the voltage of a battery if only one side was connected to ground, we can assume that it will remain at 1.5 volts because that is the voltage of each individual cell. However, when both sides of the battery are connected to ground, then there is no way for current to flow and the voltage will drop to zero.

It is important to remember that nothing will prevent current from flowing into or out of the battery; it is just that there will be no further movement of electrons through the external circuit. The energy stored in the electric field is still there, it's just not being converted into useful work anymore.

## What will happen if there is no salt bridge?

Without a salt bridge, the electrons generated at the anode would accumulate at the cathode, causing the reaction to stall. Voltaic cells are commonly employed as an electrical power source. The energy in this type of cell can be converted into electricity for use with any device that uses electricity, such as lights, motors, and appliances.

Salt bridges are used in many technologies to provide isolation between two otherwise conductive elements. For example, they may be used in electrostatic discharge (ESD) protection circuits on integrated circuits or in radio frequency (RF) filters. A metal rod or wire is often used as one element of the bridge, with another piece of metal having a hole through it. When the two pieces of metal are placed next to each other in water, their opposite charges attract each other through the water, forming a bridge between them.

In a voltaic cell, when there is no salt bridge, there is no path for electrons to travel from the anode to the cathode. Therefore, the cell cannot be used to produce electricity. However, the cell still works via its electrolyte, which continues to conduct positive ions from anode to cathode while negative ions from the anode and cathode diffuse through the gas inside the cell.

##### Chasity Neal

Chasity Neal is an interior designer who has been working in the industry for over 15 years. She started her career as an architect, but found that she loved designing interiors more than anything else. Her favorite part of the process is coming up with design solutions for clients and getting to see their reactions when they first see their new space.

#### Disclaimer

GrowTown.org is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.