What is the total resistance when three 300 ohm resistors are connected in parallel?

To find the total resistance of resistors in parallel, the formula used is 1/R_total = 1/R1 + 1/R2 + 1/R3. For three resistors of equal value, the formula simplifies to R_total = R / n, where n is the number of resistors.

In this case, since all three resistors have a resistance value of 300 ohms, we can substitute into the simplified formula. This results in R_total = 300 ohms / 3, which equals 100 ohms.

This calculation illustrates that when resistors are connected in parallel, the total resistance decreases as more resistors are added, because the pathways for current flow increase, making it easier for the electric current to pass through.

Thus, the total resistance when three 300 ohm resistors are connected in parallel is 100 ohms.