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Resistance in a circuit ,,
Hi guys ,, I have the following picture
OK ,, I know it's easy but my answer's is not like my teacher's answer :
for (a) I get 6.12 ohm and for (b) I get 2.4 ohm
but my teacher's answer is :
a. Rt=4+4+4=12 ohm
b. Rt= (8//4)+4= 6.667 ohm
what I don't get for :
a. how can he just add them together ,, it's not like they are in series and 2 of them are in parallel .. and I don't know why adding only 3 resistors only ?? there are 5 ~.~ ,,
b.how come 8//4 and there is a resistor between 4 & 4 ,, so don't we have to take a parallel (4//4) then add with 4 then parallel them with the upper resistor ??
so can someone simplify circuits please _ ,, (I usually use current direction to know whether they are in parallel or series)
Homework Statement
Hi guys ,, I have the following picture
The Attempt at a Solution
OK ,, I know it's easy but my answer's is not like my teacher's answer :
for (a) I get 6.12 ohm and for (b) I get 2.4 ohm
but my teacher's answer is :
a. Rt=4+4+4=12 ohm
b. Rt= (8//4)+4= 6.667 ohm
what I don't get for :
a. how can he just add them together ,, it's not like they are in series and 2 of them are in parallel .. and I don't know why adding only 3 resistors only ?? there are 5 ~.~ ,,
b.how come 8//4 and there is a resistor between 4 & 4 ,, so don't we have to take a parallel (4//4) then add with 4 then parallel them with the upper resistor ??
so can someone simplify circuits please _ ,, (I usually use current direction to know whether they are in parallel or series)
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