Question

Which of the following graphs represents the correct variation of capacitive reactance $X_{C}$ with frequency $\upsilon?$

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

: Capacitive reactance,

$X_{C} = \frac{1}{\omega C} = \frac{1}{2\pi\upsilon C}$

$\Rightarrow X_{C} \propto \frac{1}{\upsilon}$

With increase in frequency, $X_{C}$decreases. Hence, option (3) represents the corrent graph.