00:01
Here it is given that vr1 equals to 26 volt, vr2 equals to 14 volt, so that we are fine vr3 equals to question mark.
00:17
So the key concept which we are going to use here for this question is the kirchav's voltage law.
00:27
So according to kistov -wolted law, the submission of this.
00:31
The voltage inside a loop is always is equal to zero.
00:36
So before that, let us look to the circuit first.
00:39
So this is what the circuit, which we have given here according to question, in which this resistance is representing the r1, this one is r3, this one is r2.
00:52
While this battery source having the supply of 5 volt, this having the 30 volt, and this having the 15 volt.
01:03
While the terminals have been assigned as a, this is b, c, here it is d, e, and f.
01:16
Now as you can see that vr1 is the voltage across this r1, vr2 across voltage r2, and vr3, and vr3 is the voltage across this r3, which we have to find here.
01:29
Obviously, this submissions means these are given as plus minus vr 1.
01:39
Here it is plus minus vr 2.
01:43
Here it is minus plus vr of 3.
01:49
So as we have stated that we are going to use the kvl concept here...