## Parallel connection (total resistance, equivalent resistance)

` $$ \frac{1}{R} ~=~ \frac{1}{R_1} ~+~ \frac{1}{R_2} ~+~ \frac{1}{R_3} ~+~ ... $$ `

Learn about the electromagnetic properties of our universe, for example about electric charges, currents, electromagnetic fields and so on.

` $$ \frac{1}{R} ~=~ \frac{1}{R_1} ~+~ \frac{1}{R_2} ~+~ \frac{1}{R_3} ~+~ ... $$ `

Here you will learn how to recognize Ohm's Law in a U-I diagram and how to apply the associated URI formula. Three examples are covered.