A 10 Ω resistor and a 20 Ω resistor are connected in series. What is the total r

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Question: A 10 Ω resistor and a 20 Ω resistor are connected in series. What is the total resistance?

Options:

Correct Answer: 30 Ω

Solution:

In series, the total resistance R = R1 + R2 = 10 Ω + 20 Ω = 30 Ω.

A 10 Ω resistor and a 20 Ω resistor are connected in series. What is the total resistance?

A 10 Ω resistor and a 20 Ω resistor are connected in series. What is the total resistance?

Correct Answer: 30 Ω

Step 1: Identify the resistors in the circuit. We have a 10 Ω resistor and a 20 Ω resistor.
Step 2: Understand that when resistors are connected in series, the total resistance is the sum of the individual resistances.
Step 3: Write down the formula for total resistance in series: R_total = R1 + R2.
Step 4: Substitute the values of the resistors into the formula: R_total = 10 Ω + 20 Ω.
Step 5: Perform the addition: 10 Ω + 20 Ω = 30 Ω.
Step 6: Conclude that the total resistance is 30 Ω.

Series Resistance Calculation – In a series circuit, the total resistance is the sum of the individual resistances.