WBCS.LIVE practice question

ECG records

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. rate of heart beats
  2. potential difference
  3. ventricular concentration
  4. volume of blood pumped

Correct answer and explanation

Correct answer: potential difference

Explanation: āœ… Correct Answer: B) potential difference šŸ“š Explanation: An Electrocardiogram (ECG) measures the electrical activity of the heart over time. It specifically detects the potential difference (voltage) generated by the depolarization and repolarization of the heart muscles during each heartbeat.