(Solved): - Part B To simplify the circuit diagram, we represent the two resistances \( R_{1} \) and \( R_{2 ...

- Part B To simplify the circuit diagram, we represent the two resistances \( R_{1} \) and \( R_{2} \) by just one resistance, \( R \), as shown in (Figure 2). What is the value of \( R \) ? Note that this new resistor is equivalent to the combination of resistors 1 and 2 in parallel in the sense that if you replaced one by the other, the electrical properties of the circuit would remain unchanged. Express the resistance \( R \) in terms of \( R_{1} \) and \( R_{2} \). Figure