00:01
Let's refer to the circuit diagram shown here.
00:04
The circuit is composed of four resistors with a given resistances, and an amateur is connected series to the six -arm resistor.
00:14
The parallel connection here of the four resistors are also connected across a 12 -volt voltage source.
00:23
So this is the question.
00:25
What is the reading of amateur a? four choices are given to us.
00:30
The circuit is a simple one, then we can use the fundamental principle in analyzing simple circuits, and that would be om slough.
00:41
So again, our main question is we need to determine the reading of amateur a.
00:47
By the concept of an amateur, an amateur reads the current that flows through it.
00:54
Hence, since the amateur is in series with a six -home resistor, then the reading that it registers is the current that also flows through the 6 -oam resistor.
01:06
Hence, if we're able to determine the current through the 6 -oom resistor, then that will also be the answer to our question.
01:15
So our unknown is the current through the 6 -oom resistor.
01:22
Using omslough here, we have the ratio of voltage to resistance is equivalent to the.....