Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > (A): Electric field cannot exist inside a per...
Start Learning for Free
(A): Electric field cannot exist inside a perfect conductor.
(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.
(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.
- a)Both A and R are true and R is a correct explanation of A
- b)Both A and R are true but R is not a correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
(A): Electric field cannot exist inside a perfect conductor.(R): For a...
(A) is true: Inside a perfect conductor, the electric field cannot exist in the steady state. This is because a perfect conductor has zero electrical resistivity, and any electric field that tries to penetrate the conductor would induce an infinite current, which is not possible in practice. Therefore, the electric field inside a perfect conductor is always zero.
(R) is true and is a correct explanation of (A): A perfect conductor is characterized by an infinite electrical conductivity (σ = ∞). For a perfect conductor, the relationship between electric field (E), current density (J), and conductivity (σ) is given by Ohm's law: J = σE.
If σ is infinite (σ = ∞), then the current density (J) must be zero (J = 0) to maintain a finite electric field (E). Since electric field (E) is related to the voltage drop (ΔV) as E = ΔV/d (where d is the distance), if electric field (E) is zero, there is no voltage drop inside the conductor.
Hence, both statements (A) and (R) are true, and (R) provides a correct explanation for why (A) is true. The correct answer is option A.
Free Test
FREE
| Start Free Test |
Community Answer
(A): Electric field cannot exist inside a perfect conductor.(R): For a...
Explanation:
Electric field cannot exist inside a perfect conductor because the free charges in the conductor will rearrange themselves in such a way that cancels out any electric field inside. This leads to a condition where the electric field inside the conductor is zero.
Reasoning:
For a perfect conductor, the conductivity (σ) is infinite, which implies that the electric field inside the conductor is zero. This is because in a perfect conductor, any applied electric field will cause the free charges to move indefinitely until the electric field is canceled out. As a result, there is no voltage drop inside the conductor.
Therefore, both statements are true. The first statement explains why electric field cannot exist inside a perfect conductor, while the second statement provides the reason for the absence of a voltage drop inside the conductor. So, statement R is a correct explanation of statement A.
Electric field cannot exist inside a perfect conductor because the free charges in the conductor will rearrange themselves in such a way that cancels out any electric field inside. This leads to a condition where the electric field inside the conductor is zero.
Reasoning:
For a perfect conductor, the conductivity (σ) is infinite, which implies that the electric field inside the conductor is zero. This is because in a perfect conductor, any applied electric field will cause the free charges to move indefinitely until the electric field is canceled out. As a result, there is no voltage drop inside the conductor.
Therefore, both statements are true. The first statement explains why electric field cannot exist inside a perfect conductor, while the second statement provides the reason for the absence of a voltage drop inside the conductor. So, statement R is a correct explanation of statement A.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
(A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?
Question Description
(A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
(A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
Solutions for (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
(A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice (A): Electric field cannot exist inside a perfect conductor.(R): For a perfect conductor σ = ∞ and there is no voltage drop inside the conductor.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup