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A long solenoid has n turns per metre and current I ampere is flowing through it. The magnetic field at the ends of solenoid is
- a)μ₀ n I/2
- b)μ₀ n I
- c)zero
- d)2 μ₀ n I
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
A long solenoid has n turns per metre and current I ampere is flowing ...
Zero
b) non-zero, but cannot be determined
c) depends on the length and radius of the solenoid
d) depends only on the number of turns and current flowing through the solenoid
The correct option is d) depends only on the number of turns and current flowing through the solenoid.
The magnetic field inside a long solenoid is given by:
B = μ0 n I
where μ0 is the permeability of free space, n is the number of turns per unit length, and I is the current flowing through the solenoid.
Since the solenoid is long, the magnetic field at the ends is approximately equal to the magnetic field at the center of the solenoid. Therefore, the magnetic field at the ends of the solenoid is given by the same equation as above:
B = μ0 n I
So, the magnetic field at the ends of the solenoid depends only on the number of turns and current flowing through the solenoid, and is independent of the length and radius of the solenoid.
b) non-zero, but cannot be determined
c) depends on the length and radius of the solenoid
d) depends only on the number of turns and current flowing through the solenoid
The correct option is d) depends only on the number of turns and current flowing through the solenoid.
The magnetic field inside a long solenoid is given by:
B = μ0 n I
where μ0 is the permeability of free space, n is the number of turns per unit length, and I is the current flowing through the solenoid.
Since the solenoid is long, the magnetic field at the ends is approximately equal to the magnetic field at the center of the solenoid. Therefore, the magnetic field at the ends of the solenoid is given by the same equation as above:
B = μ0 n I
So, the magnetic field at the ends of the solenoid depends only on the number of turns and current flowing through the solenoid, and is independent of the length and radius of the solenoid.
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Community Answer
A long solenoid has n turns per metre and current I ampere is flowing ...
Option A is correct
Reason :Field at ends is half of the field inside(center) of the solenoid
Reason :Field at ends is half of the field inside(center) of the solenoid
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A long solenoid has n turns per metre and current I ampere is flowing through it. The magnetic field at the ends of solenoid isa)μ₀ n I/2b)μ₀ n Ic)zerod)2 μ₀ n ICorrect answer is option 'A'. Can you explain this answer?
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A long solenoid has n turns per metre and current I ampere is flowing through it. The magnetic field at the ends of solenoid isa)μ₀ n I/2b)μ₀ n Ic)zerod)2 μ₀ n ICorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A long solenoid has n turns per metre and current I ampere is flowing through it. The magnetic field at the ends of solenoid isa)μ₀ n I/2b)μ₀ n Ic)zerod)2 μ₀ n ICorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A long solenoid has n turns per metre and current I ampere is flowing through it. The magnetic field at the ends of solenoid isa)μ₀ n I/2b)μ₀ n Ic)zerod)2 μ₀ n ICorrect answer is option 'A'. Can you explain this answer?.
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