Resistances In Series
Easyphysics
Three resistors of 2 Ω, 3 Ω, and 5 Ω are connected in series. What is the equivalent resistance?
Select the correct option:
Solution
Incorrect! Answer:
10 Ω
- Series Combination Rule: In a series circuit, the same current flows through all components, and the individual resistances add up directly.
- Formula: Req=R1+R2+R3+…
- Substitution:
- Req=2 Ω+3 Ω+5 Ω.
- Result:
- Req=10 Ω.
- Important Note: In series, the total resistance is always greater than the largest individual resistor in the group.
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About This Question
- Subject
- physics
- Chapter
- current electricity
- Topic
- resistances in series
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
10 Ω
- Series Combination Rule: In a series circuit, the same current flows through all components, and the individual resistances add up directly.
- Formula: Req=R1+R2+R3+…
- Substitution:
- Req=2 Ω+3 Ω+5 Ω.
- Result:
- Req=10 Ω.
- Important Note: In series, the total resistance is always greater than the largest individual resistor in the group.
This easy difficulty physics question is from the chapter current electricity, covering the topic of resistances in series. It appeared in the 2025 exam.
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