Correct formula to calculate Voltage (Voltage Formula) – Basic Electrical Engineering MCQ#45

The correct formula to calculate voltage is:

  1. V = WI
  2. V = P/R
  3. V = W/Q
  4. V = I.t

Correct answer: 3. V = W/Q

By definition the voltage is 1 volt if one joule of energy is required to move one coulomb of charge from one point to the other.

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