5. Voltage Drops

Step 1: Create Falstad Simulation

Step 2: Questions

Falstad Circuit Simulator: Blank Circuit



Ohm’s Law:

Voltage = Current x Resistance

Note: Some components have a more complex relationship with current, so this formula does not apply to all circuits.


Resistors in series:

Rtotal = R1 + R2 + R3

The resistors in these circuits are in series: one after another. To find the total resistance, we add the values together.


Theory 5

1. Which circuit draws more current?

2. What is the voltage drop across the 10k resistor?

3. Which circuit has a larger voltage drop across the 220Ω resistors?

4. Why are the voltage drops across the 220Ω resistors different in each circuit?