00:01
Hi, in this question we have the resistance connected in this arrangement attached to the voltage v.
00:05
So, now first these two resistors are in series.
00:08
So, we have so for this combination it is 6 .8 into r6 divided by 6 .8 plus r6 since it is connected in parallel connection.
00:21
So, this is equal to ra.
00:23
Now, we have ra and 2 .2 kilo resistors are in series.
00:28
Therefore, this is equal to 2 .2 plus 6 .8 into r6 divided by 6 .8 plus r6 which is equal to rb.
00:39
Then we have so this is the equal circuit looks like.
00:43
So, this resistance is rb so which is equal to 2 .2 plus this much and this resistance is 3 .3 kilo ohm.
00:55
So, we have so rb is equal to 2 .2 plus 6 .8 into r6 divided by 6 .8 plus r6.
01:05
So, taking the lcm we have the value of rb is equal to 14 .96 into 10 power 6.
01:12
So, there is a kilo here.
01:14
So, every time there is a kilo resistor.
01:17
So, we have it is 10 power 6 plus 9 kilo r6 divided by 6 .8 k plus r6.
01:29
So, this is the value of rb.
01:31
Now, rb is in so now this is 1 .2 and this is 15.
01:38
So, these are the resistors now.
01:42
So, we have the connections like so this is the connection look like where this is 15 kilo ohm resistor this is 1 .2 kilo ohm resistor here and this is rb which is the equivalent resistance found out.
01:57
So, we have this resistor is r1 which you have to find out r2 which we have to find out and r3 which we have to find out.
02:05
Now, r1 will be equal to so the 15 kilo ohm resistor is in series or is in parallel connection with 1 .2 kilo ohm resistor.
02:15
Therefore, r1 will be 15 k into 1 .5 or 1 .2 k divided by 1 .2 k plus 15 k plus ra.
02:27
So, this is the series connection.
02:30
Therefore, we have this is the 18 m divided by 16 .2 k plus rb.
02:39
So, this is rb resistor and we have the value of r2 is 15 k into ra divided by 1 .2 k plus 15 k plus ra.
02:50
So, rb so divided by or it is equal to 15 k into rb divided by 16 .2 k plus rb.
03:02
Then, we have the value of r3 is equal to 1 .2 k plus ra or into rb divided by 1 .2 k plus 15 k plus rb.
03:15
So, these three resistors are in parallel connection and this is the circuit.
03:20
So, we have 1 .2 k into rb divided by 16 .2 k plus rb...