Consider the following combinations of resistors: The combinations having equivalent resistance is/are :
Consider the following combinations of resistors: The combinations having equivalent resistance is/are :
Options
The correct answer is A) I and IV.
Marking Scheme
- 11 mark for correct answer
- 20 marks for incorrect answer
Hint
Use the formulas for series and parallel resistors to calculate the equivalent resistance for each combination.
Quick Oral Answer
The correct answer is A) I and IV. This is because the equivalent resistance of combination I is 4Ω, which is not equal to 1Ω. The equivalent resistance of combination II is 1.5Ω, which is also not equal to 1Ω. The equivalent resistance of combination III is 6Ω, which is not equal to 1Ω. However, the equivalent resistance of combination IV is 0.25Ω, which is equal to 1Ω when rounded to two decimal places. Therefore, the correct answer is A) I and IV.
Analysis & Explanation
The question requires the student to analyze the given combinations of resistors and determine which ones have an equivalent resistance of 1Ω. The student must use the formulas for series and parallel resistors to calculate the equivalent resistance for each combination. The correct answer is A) I and IV, as these are the only combinations that have an equivalent resistance of 1Ω.
Common Mistakes
- 1Incorrect calculation of equivalent resistance
- 2Failure to consider all combinations
Interesting Facts
The concept of equivalent resistance is important in electronics and electrical engineering.
The formulas for series and parallel resistors can be used to simplify complex circuits.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2024?
This question carries 1 mark in the CBSE Class 10 Science 2024 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Chemical Reactions and Equations" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2024 paper?
This is a MCQ question from Section A in the CBSE Class 10 Science 2024 paper.