R1 Resistance 1. Current Divider for 2 Resistors in Parallel With Voltage Source. Resistors In Series And Parallel Formula Derivation Resistors Formula Series R eq 2000 kΩ The equivalent resistance of the 1000 kΩ and 2500 kΩ resistors in parallel is. . The final step is to invert the values on both sides of the formula to find the equivalent resistance. In fig 2 the resistors are connected in parallel. The symbol Req is used to. Total Resistance Of 3 or more Resistors Connected parallel. R3 Resistance 3. Resistance 2 Ω and 4 Ω are connected in series so that they will form. The Formula for Parallel Resistors In electric circuits we may replace a group of resistors with a single equivalent resistor. The formula for parallel resistance is given by And the formula for series. The conductance is the reciprocal of the resistance. The formula for three resistors connected in parallel is. Let I 1