Five resistors are connected as shown in the diagram. The potential difference b

Question

Five resistors are connected as shown in the diagram. The potential difference between points A and B is 15 V. What is the equivalent resistance between the points A and B? How much current flows through the 3.6 Ohms resistor?Simplify several times by redrawing and calculating the equivalent resistances, until you are down to 1 resistor.

What is the equivalent resistance between the points A and B?

Five resistors are connected as shown in the diagram. The potential difference between points A and B is 15 V.
R-1 Ref 20-6

Explanation / Answer

Req = 3.6 + (1.8 || (3.5+5.1)) + 2.4 ohm
   = 3.6 + (1.8 || 8.6) + 2.4 ohm
= 3.6+1.488 +2.4 ohm
   = 7.488 ohm ~ 7.5 ohm

I = V/Req = 15/7.5 = 2 A
I through 3.6 ohm = 2 A.

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