If no salt bridge were present, the solution in one half cell would accumulate negative charge and the solution in the other half cell would accumulate positive charge as the reaction proceeded, quickly preventing further reaction, and hence production of electricity.
Se non estivesen presentes as pontes salinas, a solución dunha semicela acumularía cargas negativas e a solución da outra semicela acumularía cargas positivas a medida que avanzase a reacción, impedindo rapidamente que esta continuase producíndose, e, por tanto, evitando a produción de electricidade.