Correct Answer: Option C

Explanation

Using the voltage- divider method, which states that the output voltage is directly proportional to the input voltage and the ratio of R\(_1\) and R\(_2\), given by:

\(V_{a}\) = \(\frac{R_{a}}{R_{T}}\times V_{T}\)

\(R_{T}\) = \(1 + \frac{4\times4}{4+4}\)

⇒ \(R_{T}\) = \(3\Omega\)

\(V_{1}\) = \(\frac{1}{3}V\)

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