In a circuit with a 10 ohm resistor in series with a 15 ohm resistor, total resistance is ________ ohms.

To find the total resistance in a series circuit, you need to add up the individual resistances.

In this case, the total resistance (RT) is equal to the sum of the resistances of the two resistors (R1 and R2) connected in series.

RT = R1 + R2

Given that the resistance of the first resistor (R1) is 10 ohms and the resistance of the second resistor (R2) is 15 ohms, we can substitute these values into the equation:

RT = 10 ohms + 15 ohms

Now, let's calculate the total resistance:

RT = 25 ohms

Therefore, the total resistance in the given circuit is 25 ohms.

R = R1 + R2 = 10 + 15 = 25Ω