Electro Magnetic Induction And Alternating Currents Question 62
Question: Reactance of a capacitor of capacitance $ C\mu F $ for ac frequency $ \frac{400}{\pi } $ Hz is $ 25\Omega $ . The value C is [MH CET 2002]
Options:
A) $ 50\mu F $
B) $ 25\mu F $
C) $ 100\mu F $
D) $ 75\mu F $
Show Answer
Answer:
Correct Answer: A
Solution:
$ X_{C}=\frac{1}{2\pi \nu C},\Rightarrow C=\frac{1}{2\pi \nu X_{C}}=\frac{1}{2\times \pi \times \frac{400}{\pi }\times 25}=50\mu F $
