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A : Wires of the transmission lines carr...

A : Wires of the transmission lines carrying A.C. are made of multiple stands.
R : A.C. flows on surface of the conductor.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

C

If Assertion is true statement but Reason is false, then mark (3)

D

If both Assertion and Reason are false statement, then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion (A) and the reason (R) provided. ### Step 1: Analyze the Assertion (A) The assertion states: "Wires of the transmission lines carrying A.C. are made of multiple strands." - **Explanation**: This statement is true. Transmission lines that carry alternating current (A.C.) are often constructed using multiple strands of wire. This design improves flexibility and reduces the risk of metal fatigue compared to a single strand conductor. ### Step 2: Analyze the Reason (R) The reason states: "A.C. flows on the surface of the conductor." - **Explanation**: This statement is also true. In alternating current, the phenomenon known as the "skin effect" occurs, where the current tends to flow near the surface of the conductor rather than uniformly throughout its cross-section. This effect becomes more pronounced at higher frequencies. ### Step 3: Determine the Relationship Between A and R Now we need to determine if the reason correctly explains the assertion. - The assertion discusses the construction of transmission lines with multiple strands for better performance, while the reason explains the behavior of A.C. in conductors. The reason does not directly explain why multiple strands are used, but it does relate to the efficiency of current flow in conductors. ### Conclusion Both the assertion and the reason are true. However, the reason does not directly explain the assertion but provides additional context about the behavior of A.C. in conductors. Thus, the correct answer is: - Both A and R are true, but R does not correctly explain A. ### Final Answer: - **Assertion (A)**: True - **Reason (R)**: True - **Relationship**: R does not correctly explain A. ---
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