Determining the time constant of the RC circuit has important practical applications because, for example, it can be used to measure unknown values of resistance or capacitance. The transient experiment can be done by using a voltmeter and stopwatch, signal generator and oscilloscope, or even low-cost data acquisition systems such as Arduino.. "/>. The time constant is determined as. where τ is the time constant in seconds, R is the resistance in ohms and C is the capacitance in farads. The time constant of an RC circuit is defined as the time it takes for the capacitor to reach 63.2% of its maximum charge capacity provided that it has no initial charge.. In series circuits, the resistor with the greatest resistance. In this circuit , the three components are all in series with the voltage source. The governing differential equation can be found by substituting into Kirchhoff's voltage law (KVL) the constitutive equation for each of the three elements. From the KVL, + + = (), where V R, V L and V C are the voltages across R, L, and C, respectively, and V(t) is the time-varying voltage from the source. The series circuit has the higher equivalent resistance, but to find the larger equivalent resistance you have to use Ohm's law (V2=I2R2), the power dissipated by the resistor can also be found using P2=I22R2=V22R2. To find the equivalent resistance of the circuit, notice that the parallel connection of R2 and R3 is in series with R1, so the. Which circuit has the smallest equivalent resistance ? a, b, c, or all the circuits have equal equivalent resistances ? I don't understand this question. I know that resistors in series are > than resistors in parallel, but when I apply this knowledge I always get the wrong answer:l ATTACHMENT PREVIEW Download attachment. The top 20 companies on the list have contributed to 35% of all energy-related carbon dioxide and methane worldwide, totalling 480bn tonnes of carbon dioxide equivalent (GtCO 2 e) since 1965. Q&A. asprey toiletries for hotels. Step 3: Reducing the Circuit.When resistors are in series, the equivalent.resistance can be calculated by simply summing all of the values of the individual resistors together. Using this method, the equivalent resistance should always yield an equivalent resistance that is larger than the largest individual resistor. Formula to Calculate Total Resistance in a.