A current carrying solenoid is cut into a ratio 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
Magnetic field in 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 solenoid is cut in any ratio; n would still remain the same because magnetic field in solenoid is independent of length and cross section area .If n remains same so will be the magnetic field
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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