Electro Magnetic Induction And Alternating Currents Question 83
Question: In an ac circuit I = 100 sin 200 pt. The time required for the current to achieve its peak value will be [DPMT 2003]
Options:
A) $ \frac{1}{100}sec $
B) $ \frac{1}{200}sec $
C) $ \frac{1}{300}sec $
D) $ \frac{1}{400}sec $
Show Answer
Answer:
Correct Answer: D
Solution:
The current takes $ \frac{T}{4} $ sec to reach the peak value. In the given question $ \frac{2\pi }{T}=200\pi \Rightarrow T=\frac{1}{100}sec $
$ \therefore $ Time to reach the peak value $ =\frac{1}{400}sec $
