Three resistors connected in series have individual voltages labeled DV₁,DV₂ and DV₃,respectively.Which of the following expresses the value of the total voltage DV_T taken over the three resistors together? A)DV_T = DV₁+ DV₂ + DV₃ B)DV_T = (1/DV₁ + 1/DV₂ + 1/DV₃) C)DV_T = DV₁ = DV₂= DV₃ D)DV_T = (1/DV₁ + 1/DV₂ + 1/DV₃)^-1

Question

Quizplus · Accepted Answer

In a series circuit, the total voltage is equal to the sum of the individual voltages across each resistor. Therefore, the correct expression for the total voltage is DV_T = DV₁ + DV₂ + DV₃. Option A is the only expression that matches this rule. Option B is the formula for the equivalent resistance of resistors in parallel, not in series. Option C states that the voltage across each resistor is the same, which is only true for resistors in parallel. Option D is an incorrect formula that contains a random multiplication and subtraction operation.

Three Resistors Connected in Series Have Individual Voltages Labeled DV1,DV2

Three Resistors Connected in Series Have Individual Voltages Labeled DV₁,DV₂