Question 151 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.

Answer keywords:resistancenetworkpoints12

Marking scheme

  1. 1.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.
  2. 2.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.

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.

Common mistakes

  1. 1.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.
  2. 2.The resistance of the network between the two points 1 and 2 is actually 48 Ω48\ \Omega.

Analysis and 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.

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.

Question details

Q15 of 39 questions

Board
CBSE
Class
Class 10
Subject
Science
Year
2025
Section
Section A
Marks
1
Type
MCQ
Chapter
Electricity
Topic
Electric Circuit
Bloom's level
Understanding
Syllabus topic
Electric Circuit

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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.