Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer?

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

Defence Exam > Defence Questions > Two metallic wires A and B are made using cop...

Join the Discussion on the App

Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P₁ . Which one of the following is the correct relationship between P and P₁?

a)
P= 2P₁
b)
P= P₁/2
c)
P= 4P₁
d)
P= P₁

Correct answer is option 'B'. Can you explain this answer?

FREE This question is part of

NDA I - English & General Ability 2019

Attempt Test

Attempt this Test

Verified Answer

Two metallic wires A and B are made using copper. The radius of wire A...

Resistance of a wire,

If R_o is the resistance of first wire, the resistance of second wire.

P = P₁/2

View all questions of this test

View all answers Start learning for free

< Previous Question Next Question >

Explore Courses for Defence exam

Similar Defence Doubts

Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?

View answer

Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

View answer

Direction: In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.Technical skill _____ to the ability and knowledge to use the pedagogy, tools and techniques involved in the teaching and research of a specific subject. Ability in programming or software designing and operating a computer is, _ instance, a technical skill. There are two things a teacher should understand ___transformational technical skills. In the first place, he must know _ skill and what level of skill should be applied on a particular student. He should be _enough with their potential to ask discerning questions. Secondly, a teacher must understand the role of each event organised and the transformational skill applied, and the inter-relationships between the events and skills.Q.he must know ___ skill and what level

View answer

Direction: In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.Technical skill _____ to the ability and knowledge to use the pedagogy, tools and techniques involved in the teaching and research of a specific subject. Ability in programming or software designing and operating a computer is, _ instance, a technical skill. There are two things a teacher should understand ___transformational technical skills. In the first place, he must know _ skill and what level of skill should be applied on a particular student. He should be _enough with their potential to ask discerning questions. Secondly, a teacher must understand the role of each event organised and the transformational skill applied, and the inter-relationships between the events and skills.Q.a computer is, ___ instance, a technical skill

View answer

Direction: In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.Technical skill _____ to the ability and knowledge to use the pedagogy, tools and techniques involved in the teaching and research of a specific subject. Ability in programming or software designing and operating a computer is, _ instance, a technical skill. There are two things a teacher should understand ___transformational technical skills. In the first place, he must know _ skill and what level of skill should be applied on a particular student. He should be _enough with their potential to ask discerning questions. Secondly, a teacher must understand the role of each event organised and the transformational skill applied, and the inter-relationships between the events and skills.Q.Technical skill ___ to the ability

View answer

Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer?.

Solutions for Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence. Download more important topics, notes, lectures and mock test series for Defence Exam by signing up for free.

Here you can find the meaning of Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Two metallic wires A and B are made using copper. The radius of wire A is r while its length is I. A dc voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2I and the same dc voltage V is applied across it causing power dissipation P1 . Which one of the following is the correct relationship between P and P1?a)P= 2P1b)P= P1/2c)P= 4P1d)P= P1Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Defence tests.

Explore Courses for Defence exam