Which part of the symbol of the battery shows positive and negative terminals.
How can we connect the cells to make a battery?

Hint:The above problem can be resolved by using the concepts and fundamentals of the power supply in an electronic circuit. The cells and batteries are a major power supplying sources. The Batteries are formed by combining the number of cells, such that each combination gives the desired amount of voltage supply to the electronic circuit. Moreover, these cells and batteries possess some chemical compositions like lithium, and the battery is known as a lithium battery.

Complete step by step answer:
In a battery, the plus sign (+) determines the positive terminal of the battery, and the minus sign (-) determines the negative terminals of the battery.
The cells are the basic electronic elements that function to supply electrical energy to the supply board. By combining the number of cells, we can form a bigger unit of power supply. And this bigger unit is known as the battery. We can connect the number of cells by connecting the positive terminal of one cell to the negative terminal of another cell. And this series goes on to form a bigger source of power supply, known as the battery.

Note: To solve the above problem or the problems related to the above conditions, one must learn the key concepts of the chemical composition of the cell and the battery. The cells are considered as the basic unit of power supply, and on combining them, in a huge amount, the batteries are formed.