English: The figure shows the bond graph of two analogous systems: one electrical and one mechanical.

- The bond graph C component represents either the electrical capacitor C or the mechanical spring K. - The bond graph I component represents either the electrical inductor L or the mechanical mass M. - The bond graph R component represents either the electrical resistor R or the mechanical damper D. - The harpoon symbol is a bond transferring energy; the harpoon direction corresponds to positive energy flow and is a sign convention. The conjugate variables are displayed on each bond for the purposes of illustration.

- The 1-junction represents the series connection of the electrical circuit where the same current i flows in each component and the connection of the three components in the mechanical system which share a common velocity. Thus the bond graph components share the same flow f, but the efforts e are different, corresponding to the voltages and forces of the electrical and mechanical components respectively. Energy is conserved at the junction by requiring that the three efforts add to zero.