Four resistors, \(R_1=7 \space \Omega\) , \(R_2=8 \space \Omega\), \(R_3=8 \space \Omega\) , and \(R_4=2 \space \Omega\) are connected in series to a 59-V source. What is the total resistance of the circuit?
If \(R_4\) were replaced by another resistor such that the total resistance of the circuit is 74 \(\Omega\), what would be its value?
