In the above, a voltage V is applied across the terminals...
In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is
V/8
V/4
V/3
V/2
Correct answer is C
Using the voltage- divider method which states that the output voltage is directly proportional to the input voltage and the ratio of R1 and R2, 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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