what is the total resistance in a circuit having 3 feetof 10 ohm/ft wire, with two 15 ohm resistors wired in parallel?

see other post.

To find the total resistance in the circuit, we need to calculate the resistance of each component and then apply the appropriate formula.

First, let's calculate the resistance of the 3 feet of wire. We are given that the wire has a resistance of 10 ohm per foot, so we multiply the length of the wire by its resistance:
Resistance of wire = 10 ohm/ft × 3 ft = 30 ohms.

Now, let's focus on the two 15 ohm resistors wired in parallel. When resistors are connected in parallel, the total resistance is calculated using the formula:
1/Total Resistance = 1/Resistance₁ + 1/Resistance₂ + ...

In this case, we have two resistors:
1/Total Resistance = 1/15 ohm + 1/15 ohm
1/Total Resistance = 2/15 ohm
Total Resistance = 15 ohm/2

To find the resistance of the wire and the resistors combined, we need to calculate their total resistance. Since the wire resistance and the resistors are connected in series, we simply add them:
Total Resistance = Resistance of wire + Total Resistance of resistors
Total Resistance = 30 ohms + 15 ohms/2

Therefore, the total resistance in the circuit is 30 ohms + 15 ohms/2 = 45 ohms.