00:01
Hi, in this question we have rlc circuit.
00:04
So, rlc circuit where the resonance frequency is determined by the formula.
00:09
So, f is equal to it is 1 by 2 pi into root of l c.
00:14
So, here we have for the first case.
00:17
So, l and c are doubled.
00:21
So, if l and c are doubled we have.
00:24
So, from the previous.
00:25
So, from the equation we have l and c are doubled then the square root of their product will also double.
00:33
So, this gets double.
00:35
So, if l and c double then this get also doubled.
00:39
So, if denominator increases.
00:42
So, then the numerator decreases that is.
00:47
So, here the f is inversely proportional to 1 by root l c.
00:52
So, root l c that is 2 times because it is 2 into 2.
00:56
So, 2 into 2 is 4, 4 becomes.
00:59
So, root of 4 becomes 2.
01:00
So, if this increases then 4 frequency decreases therefore, for the first case.
01:07
So, for the first case we have the resonance frequency decreases...