00:01
So for this problem, we're going to have a 120 volt battery and two resistors.
00:13
So one of these resistors has a resistance of 22 oms, and the other one has a resistance of 33 oms.
00:26
To calculate the equivalent resistance of this whole circuit, well, we know that the resistance equivalent is equal to all the resistances add together.
00:36
So in this case, it'll be 22 plus 33, so it equal 55 oms.
00:42
Alright, so then with this in mind, we can calculate the current of the entire circuit.
00:49
We know that current is equal to the voltage divided by the resistance.
00:59
So therefore, it's 120 divided by 55, which is 2 .18 amps.
01:13
Okay, so now that we have that, we can go ahead and actually calculate the voltage drop across each of these resistors.
01:21
So across the first resistor, we know that the voltage is what we're trying to find...