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#Question id: 19696


Different leads are used to record ECG of humans. Which of the following connection shows in recording limb lead I?

#SCPH01 Biochemistry
  1. the negative terminal of the electrocardiograph is connected to the right arm and the positive terminal is connected to the left arm.
  2. the positive terminal of the electrocardiograph is connected to the right arm and the negative terminal is connected to the right arm.
  3. the negative terminal of the electrocardiograph is connected to the right arm and the positive terminal is connected to the left leg.
  4. the negative terminal of the electrocardiograph is connected to the left arm and the positive terminal is connected to the left leg.