Multiple Choice Questions (MCQs): Ampere's Law - NEET MCQ

# Multiple Choice Questions (MCQs): Ampere's Law - NEET MCQ

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## 5 Questions MCQ Test Topic-wise MCQ Tests for NEET - Multiple Choice Questions (MCQs): Ampere's Law

Multiple Choice Questions (MCQs): Ampere's Law for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Multiple Choice Questions (MCQs): Ampere's Law questions and answers have been prepared according to the NEET exam syllabus.The Multiple Choice Questions (MCQs): Ampere's Law MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Multiple Choice Questions (MCQs): Ampere's Law below.
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Multiple Choice Questions (MCQs): Ampere's Law - Question 1

### A steady electric current is flowing through a cylindrical conductor.Then select the correct statement. 1. The electric field in the vicinity of the conductor is zero. 2. The magnetic field in the vicinity of the conductor is zero. 3. The electric field at the axis of the conductor is zero. 4. The magnetic field at the axis of the conductor is zero.​

Detailed Solution for Multiple Choice Questions (MCQs): Ampere's Law - Question 1

If a current passes through any conductor, net charge through any section is zero. hence, electric field in the vicinity of the conductor is zero. We can observe using Biot and Savart law that the magnetic field at the axis of the cylindrical wire will be zero. Electric field at the axis of the wire cannot be zero otherwise the current through the wire cannot flow.
So statement 1 and 4 are correct.

Multiple Choice Questions (MCQs): Ampere's Law - Question 2

### A current I ampere flows along an infinitely long straight thin-walled tube, then the magnetic induction at any point inside the tube is

Detailed Solution for Multiple Choice Questions (MCQs): Ampere's Law - Question 2

Changes(if required):
Solution:
Sinθ=0 on any pt. on the axis of conductor carrying current
B=(μo/4Π)​​i(dlSinθ​/r2)

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Multiple Choice Questions (MCQs): Ampere's Law - Question 3

### If a long hollow copper pipe carries a direct current, the magnetic field associated with the current will be

Detailed Solution for Multiple Choice Questions (MCQs): Ampere's Law - Question 3

For a loop inside the hollow portion of the conductor, the current enclosed is zero until the loop is on the surface or inside the material of the conductor.
∴Binside=0
For any loop outside, current enclosed by the amperian loop is not zero, hence the magnetic field is non-zero.

Multiple Choice Questions (MCQs): Ampere's Law - Question 4

Ampere’s circuital law is analogous to a law in electrostatics.That law is

Detailed Solution for Multiple Choice Questions (MCQs): Ampere's Law - Question 4

Ampere's law is similar to Gauss's law in electrostatics.
Gauss's law correlates the surface integral of electric field E with charge q over a surface.
Ampere's law co-relates the line integral of magnetic field B with current over a closed path.

Multiple Choice Questions (MCQs): Ampere's Law - Question 5

In the figure shown, what is? The magnitude of current is the same in all three wires.

Detailed Solution for Multiple Choice Questions (MCQs): Ampere's Law - Question 5

According to ampere law for closed loop.as the net current in the loop is zero therefore answer is zero
Let upward direction of the current be positive in sign
therefore that for downward direction will negative
B.dl=u × current inside the loop
=u×(+I-I)
=0

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