Question 450Electricity & Electronics - Assistant Engineer

70% to pass

Which of the following statements is correct for the illustrated circuit in figure "B"? Illustration EL-0020

Diagram for USCG Electrical Assistant: Which of the following statements is correct for the illustrated circuit in...
A'R1', 'R2', and 'R3' are connected in series.
BThe total resistance equals 1/R1 + 1/R2 + 1/R3.
C'R1', 'R2', and 'R3' are connected in parallel.
DThe voltages measured across 'R1', 'R2', and 'R3' are equal.
AI Explanation

The correct answer is A) 'R1', 'R2', and 'R3' are connected in series. In a series circuit, the components are connected end-to-end, forming a single path for the current to flow. The total resistance in a series circuit is the sum of the individual resistor values, which is consistent with the illustration. The other options are incorrect because: B) The total resistance in a series circuit is not the reciprocal of the sum of the reciprocals of the individual resistors. C) The resistors are not connected in parallel, as they do not have the same voltage across them. D) The voltages measured across series-connected resistors are not necessarily equal, as the current is the same through each resistor but the resistor values may differ.

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience.

Get the App