A current-carrying solenoid is cut into a ratio of 1:3 such that both are independently connected with the same source of current. Now if the magnetic field of the first part is "BA" while the second part respectively is "BB" then what is true?
Correct answer: C. BA=BB
- A. BA=3BB
- B. BA=(BB)/3
- C. BA=BB
- D. BA=4BB
Explanation
The magnetic field in the solenoid is independent of length and cross-section area;B= 𝛍 nIn=I/Ln= number of turnsI=currentL=lengthB magnetic flux density 𝛍= magnetic Constant Even if the solenoid is cut in any ratio; n would still remain the same because the magnetic field in the solenoid is independent of length and cross-section area. If n remains the same so will the magnetic field
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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