measured voltage at each point on circuit diagram 2B. e. Repeat step 2.d, above, three times: for Figures 2C, 2D and 2E. Be sure to move the reference point (ground) to agree with the schematic, in each case. Record the results on Figures 2C, 2D and 2E. 3. Use the voltage divider rule (VDR) developed in . In parallel electrical circuits, the current doesn't remain same. The current divide rule is used to find the divided current in parallel circuits. What you'll learn: The statement of current divider. General formula. Formula for two resistors with Examples. Formula for three resistors with Examples. Its derivation. applied voltage for a load that needs less than the total voltage. Fig. Effect of a parallel load in part of a series voltage divider. (a) R1 and R2 in series without any branch current. (b) Reduced voltage across R2 and its parallel load RL. (c) Equivalent circuit of the loaded voltage divider.