b) For the circuit below (with numerical values for the battery voltage and the

Question

b) For the circuit below (with numerical values for the battery voltage and the resistances), notice that the condition from part a above is satisfied, i.e., R1/R3 R2/R4. This means there no current through the 35 ohm resistor. Knowing that the current in the 35 ohms is zero, decide whether or not the 35 ohms can be treated as a "short" or an "open". Then use series and/or parallel resistance formulas to calculate a numerical value for the "equivalent resistance Give the numerical value of the equivalent resistance here: Briefly explain your calculations here:

Explanation / Answer

We will ignore the middle resistance as no current passes from there. Then we will take the series sum in the two pairs, and finally parallel combination of the resultant pair.

equivalent resistance = [100+25]*[48+12]/[100+25+48+12] = 40.54 ohm

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