In a circuit, when increasing the number of electrons in one object compared to another, what is the resulting effect?

When the number of electrons in one object increases compared to another, it creates a difference in electric charge between the two objects. This difference in charge leads to the development of voltage between these objects. Voltage, or electric potential difference, is formed when there is an imbalance of electrons, which can create the force that drives electric current through a circuit.

In this situation, the excess of electrons creates a negative charge, while the object with fewer electrons has a positive charge. The voltage is essentially the measurement of this potential difference, and it plays a crucial role in the flow of electrical current through a circuit. Therefore, the correct option highlights the direct relationship between the accumulation of electrons and the resulting voltage created in the circuit.