00:01
In this question, we have four resistors in series.
00:04
Okay.
00:08
Okay, so the four resistors are 12 oms, 15 oms, 20 oms, 35 oms.
00:16
Okay, so we want to find the equivalent resistance and then this is connected to a 6 volt battery.
00:25
So we need to find the current circuit, potential difference across each resistor.
00:33
And verify that the sum of the potential differences is equal to 6 watts.
00:46
I'm going to call this r1, r3, and r4.
00:52
So to do this, to do part a, the equivalent resistance is just a sum of all the resistances.
01:17
Plus 20 plus 35 and the answer is 82 oms okay then part b find a circuit current current is b divided by our equivalent 6 divided by 82 and the answer is 0 .07 32 amperts okay we want to find potential difference across each sister...