Best Answer: For ECG recording, 10 electrodes are used but at each level voltage difference between two electrode points is measured and the combination the two points is termed lead. Read on for further clarification.... The term lead in electrocardiography causes much confusion because it is used to refer to two different things. In accordance with common parlance the word lead may be used to refer to the electrical cable attaching the electrodes to the ECG recorder.
The ethnonym Afghan (Ø§ÙØºØ§Ù AfÄ¡Än) has been used in the past to denote a member of the Pashtuns,[1] and that usage still persists in some places in Afghanistan.[2] The name Afghanistan (Ø§ÙØºØ§ÙØ³ØªØ§Ù AfÄ¡ÄnistÄn; Afghan + -stan) is a derivation from the ethnonym Afghan, originally in the loose meaning land of the Pashtuns and referred to the Pashtun ...
The written history of Afghanistan (Pashto: Ø¯ Ø§ÙØºØ§ÙØ³ØªØ§Ù ØªØ§Ø±ÙØ® â , Da AfÄ¡ÄnistÄn TÄrÄ«kh), can be traced back to around 500 BCE when the area was under the Achaemenid Empire, although evidence indicates that an advanced degree of urbanized culture has existed in the land since between 3000 and 2000 BCE.fghanistan (meaning land of the Afghans) has been a strategically important location throughout history.