What is the aim of the effect of increasing the number of cells connected series on the current strength and potential difference in a circuit
The aim of increasing the number of cells connected in series in a circuit is to increase the potential difference (voltage) across the circuit while keeping the current flowing through the circuit at the same strength.
To understand why this happens, let's first define what it means to connect cells in series. When we connect cells in series, we connect the positive terminal of one cell to the negative terminal of the next. This arrangement adds the voltage of each cell together, resulting in a higher total voltage across the circuit.
Now, let's consider the effect on current strength. In a series circuit, the same current flows through each component of the circuit. When we increase the number of cells in series, the total resistance of the circuit remains the same (assuming no other changes are made). According to Ohm's Law (V = IR), if the resistance and voltage increase in proportion, then the current will remain constant.
In summary, by increasing the number of cells connected in series, we increase the potential difference (voltage) across the circuit while maintaining the same current strength.