This animation shows the relationship between two parallel currents.

Drag the sliders to change the resistance between 1 & 100Ω. Notice the readings of current through the resistors, in comparison to the current through the battery. Also, notice the relationship between the resistance ratios & the current ratio.

1. What is the relationship between the current into & out of a junction in the circuit?
2. What happens to the currents if both resistors are equal?
3. Set the two resistors so that the top resistor has twice the resistance of the bottom one (a 2:1 ratio). What is the ratio of currents?