Consider the following electrical circuit diagram in which nine identical resistors of $3\Omega$ each are connected as shown. If the reading of the ammeter $A_1$ is 1 ampere, answer the following questions :

(a) What is the relationship between the readings of $A_1$ and $A_3$ ? Give reasons for your answer.

(b) What is the relationship between the readings of $A_2$ and $A_3$ ?

(c) Determine the reading of the voltmeter $V_1$ .

OR

(c) Find the total resistance of the circuit.

Chemical Reactions and Equations

Official Answer

The relationship between the readings of $A_1$ and $A_3$ is that they are equal. This is because the current flowing through the circuit is divided equally between the two branches, and since the resistors are identical, the voltage drop across each resistor is the same. Therefore, the current flowing through $A_1$ and $A_3$ is the same, which means their readings are equal.

relationshipreadingsA1A3equal

Marking Scheme

1The relationship between the readings of $A_1$ and $A_3$ is that they are equal.
2The relationship between the readings of $A_1$ and $A_3$ can be determined by analyzing the circuit diagram. Since the resistors are identical, the voltage drop across each resistor is the same. Therefore, the current flowing through $A_1$ and $A_3$ is the same, which means their readings are equal.

Hint

The relationship between the readings of $A_1$ and $A_3$ can be determined by analyzing the circuit diagram. Since the resistors are identical, the voltage drop across each resistor is the same. Therefore, the current flowing through $A_1$ and $A_3$ is the same, which means their readings are equal.

Quick Oral Answer

Analysis & Explanation

Common Mistakes

1The relationship between the readings of $A_1$ and $A_3$ is not equal.
2The relationship between the readings of $A_1$ and $A_3$ cannot be determined by analyzing the circuit diagram.

Interesting Facts

The relationship between the readings of $A_1$ and $A_3$ is a fundamental concept in electrical engineering.

The relationship between the readings of $A_1$ and $A_3$ is used in many real-world applications, such as in the design of electronic circuits.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2023?

This question carries 4 marks in the CBSE Class 10 Science 2023 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 2023 paper?

This question appears in Section E in the CBSE Class 10 Science 2023 paper.