00:01
Hello students in this question, a circuit as shown in the figure is being given with the value of resistance r1 to be equal to 1 .5 kilo -oam, resistance r2 to be equal to 2 .2 kilo -oam, resistance r3 to be equal to 4 .7 kilo -oam and resistance r4 to be equal to 10 kilo -oam.
00:24
And here the initial voltage of this circuit is taken as v0, which is equal to 10 volt.
00:31
Now here from the figure you can say that at point a and point b the potential will be 0.
00:38
In that case we can first find out the equivalent resistance of resistance r1, resistance r2 and resistance r3.
00:47
Using the equation r equivalent to be equal to the value of r1 plus r2 into r3 divided by r2 plus r3.
00:58
Now we substitute in the values in the this equation and undergoing simplification, we get the value of r equivalent to be equal to 2 .998 kilo.
01:09
Now first we can find out the current through the circuit is in the equation current i to be equal to initial voltage v0 divided by r equivalent.
01:21
There we substitute in the value of v0 and r equivalent in this equation we get the value of current flowing through the circuit i to be equal to 3.
01:30
Into 10 raise to minus 3 amoeia...