MCQ
$ECG$ records
- AElectric current of the body
- ✓Potential differences
- CPulse rate
- DQuantity of blood pumped per minute
✓
Answer
Correct option: B.
Potential differences
b
(b) $ECG$ is the record of changes in electrical potential of heart during one beat.
(b) $ECG$ is the record of changes in electrical potential of heart during one beat.
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