Q15
1 markMCQSection A

Four identical resistors of 12 Ω12\ \Omega each are connected in series to form a square ABCD as shown in the figure. The resistance of the network between the two points 1 and 2 is:

Figure for question 15
Electricity
Electric Circuit

Options

(A)48 Ω48\ \Omega
(B)36 Ω36\ \Omega
(C)9 Ω9\ \Omega
(D)6 Ω6\ \Omega
Official Answer

The resistance of the network between the two points 1 and 2 is 36 Ω36\ \Omega.

resistancenetworkpoints12

Marking Scheme

  • 1The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each.
  • 2However, since the resistors are connected in series to form a square ABCD, the resistance of the network between the two points 1 and 2 is actually 36 Ω36\ \Omega.

Hint

The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each. However, since the resistors are connected in series to form a square ABCD, the resistance of the network between the two points 1 and 2 is actually 36 Ω36\ \Omega.

Quick Oral Answer

The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each. However, since the resistors are connected in series to form a square ABCD, the resistance of the network between the two points 1 and 2 is actually 36 Ω36\ \Omega.

Analysis & Explanation

The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each. However, since the resistors are connected in series to form a square ABCD, the resistance of the network between the two points 1 and 2 is actually 36 Ω36\ \Omega.

Common Mistakes

  1. 1The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each.
  2. 2The resistance of the network between the two points 1 and 2 is actually 48 Ω48\ \Omega.

Interesting Facts

The resistance of the network between the two points 1 and 2 is equal to the sum of the resistances of the four identical resistors of 12 Ω12\ \Omega each.

The resistance of the network between the two points 1 and 2 is actually 36 Ω36\ \Omega.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2025?

This question carries 1 mark in the CBSE Class 10 Science 2025 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Electricity" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Electric Circuit" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2025 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2025 paper.