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Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radius r,  whose centers are separated by a distance d. Current of density J (Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flows out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at point  O (O is the origin of shown x-y  axes) are :
  • a)
  • b)
  • c)
    zero
  • d)
    none of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Two long cylinders (with axis parallel) are arranged as shown to form ...
Let the current density in complete left cylinder is ,  then current density in complete right cylinder is .  Then magnetic field at any point P  in the region of overlap is
Therefore magnitude of field at any point in region of overlap is and its direction is along positive y-direction at any point  P  in overlap region.
The correct answer is: in the + y -direction
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Most Upvoted Answer
Two long cylinders (with axis parallel) are arranged as shown to form ...
Let the current density in complete left cylinder is ,  then current density in complete right cylinder is .  Then magnetic field at any point P  in the region of overlap is
Therefore magnitude of field at any point in region of overlap is and its direction is along positive y-direction at any point  P  in overlap region.
The correct answer is: in the + y -direction
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Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radiusr, whose centers are separated by a distanced. Current of densityJ(Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flows out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at pointO(Ois the origin of shownx-y axes) are :a)b)c)zerod)none of theseCorrect answer is option 'A'. Can you explain this answer?
Question Description
Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radiusr, whose centers are separated by a distanced. Current of densityJ(Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flows out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at pointO(Ois the origin of shownx-y axes) are :a)b)c)zerod)none of theseCorrect answer is option 'A'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radiusr, whose centers are separated by a distanced. Current of densityJ(Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flows out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at pointO(Ois the origin of shownx-y axes) are :a)b)c)zerod)none of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radiusr, whose centers are separated by a distanced. Current of densityJ(Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flows out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at pointO(Ois the origin of shownx-y axes) are :a)b)c)zerod)none of theseCorrect answer is option 'A'. Can you explain this answer?.
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