In making a diagnosis, the placement of the electrodes is crucial. ECG, EEG, and other electrical signals produced by the human body serve as crucial diagnostic indicators. By carefully choosing an electrode and placing it on the surface of the human body, bio-impedance signals can be acquired without noise. The electrodes placement location and type of electrode used are crucial factors in electrical bioimpedance diagnostics, which are used to identify a variety of disorders. In impedance measurements, minimum two electrodes are required to acquire the biomedical signals obtained from body tissue through skin surface placement for voltage measurement across the two electrodes. Various electrode methods for bioimpedance cardiac observation are examined in this research depending on the electrodes that are used, where they are located on the human body, and where they are placed.