Medical MCQ-Einthoven's triangle, what is the value of lead III when lead I = 2 mv and Lead II = 1 mv

Einthoven’s triangle, what is the value of lead III when lead I = 2 mv and Lead II = 1 mv

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Einthovens formula states that the sum of voltages from lead I plus those from lead III minus those from lead II is zero. Lead I+III-II=0 This is based on the principle that the sum.of the voltages in a closed path equals zero. Because the positive and negative electrodes of lead II are reversed. So it is subtracted instead of adding.

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