the diagrammed network can be replaced with a single resisto

The diagrammed network can be replaced with a single resistor with what resistance? 10 20 2. 2. 2501 380 25 38 18.39 15.310 17.04 d. e. 16.71 15.71 16.74 b. 50 26

Solution

Equivalent resistance of 10 &20 ohm in series =>Req1= 10+20=30 ohm

30 ohm, 38 ohm, 45 ohm are in parallel =>1/Req2 =1/30+1/38+1/45 =0.08187 =>Req2= 12.21 ohm

12.21 ohm & 25 ohm are in series =>Req3 =12.21+25=37.21 ohm

37.21 & 26 ohm in parallel => Req4 =37.21*26/(26+37.21) =15.3054 ohm

b is the answer