00:01
So, in order to solve this question, let us draw this circuit diagram.
00:05
So this is denoted by plus and minus which is connected to 50 by s and this is further connected to a connection given by plus minus which is attached to 40 by s and to complete the circuit, this side is connected to a value given by k2 and this side is connected to a value given by k1 and the circuit gets completed.
00:54
So, we can write down that from the given circuit, the value for tf1 is equals to 40 by s k1 divided by 1 plus 40 by s k1 which on solving will be equals to 40 k1 by s plus 40 k1 and in a similar way tf2 is given by 40 k1 k2 into 50 divided by s into s plus 40 k1 plus 2000 k1 k2.
02:01
Now upon solving this, we get 2000 k1 k2 divided by s square plus 40 k1 s plus 2000 k1 k2.
02:20
Now proceeding towards the next step of the solution where the function g of s h of s is given which is equals to 2000 k1 k2 divided by s whole into s plus 40 k1.
02:45
So, from here the value of kv is equals to limit s tends to 0 s of g s h s.
03:03
Now putting down the values, we will get kv equals to limit s tends to 0 2000 k1 k2 divided by s plus 40 k1.
03:23
So this will be equals to 2000 k1 k2 divided by 40 k1...