If a 100Ω resistor is connected in series with a 200Ω resistor, what is the tota

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Question: If a 100Ω resistor is connected in series with a 200Ω resistor, what is the total resistance? (2023)

Options:

Correct Answer: 300Ω

Exam Year: 2023

Solution:

In series, R_total = R1 + R2 = 100Ω + 200Ω = 300Ω.

If a 100Ω resistor is connected in series with a 200Ω resistor, what is the total resistance? (2023)

If a 100Ω resistor is connected in series with a 200Ω resistor, what is the total resistance? (2023)

Step 1: Identify the resistors in the circuit. We have a 100Ω resistor (R1) and a 200Ω 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_total = R1 + R2.
Step 4: Substitute the values of the resistors into the formula: R_total = 100Ω + 200Ω.
Step 5: Perform the addition: 100Ω + 200Ω = 300Ω.
Step 6: Conclude that the total resistance is 300Ω.

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