defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series General Science Chemistry
Which one of the following statements regarding Electrocardiogram is correct?
1
Electrocardiogram is graphical representation of electrical activity of cornea
2
Electrocardiogram is graphical representation of activity of kidney
3
Electrocardiogram is graphical representation of activity of brain
4
Electrocardiogram is graphical representation of electrical activity of heart