A 10-ohm resistor and a 20-ohm resistor are connected in series. What is the tot

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

Options:

Correct Answer: 30 ohms

Solution:

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

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

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

Correct Answer: 30 ohms

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

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