A solenoid has length ℓ and Number of turns. It carries a current I and the magnetic yield produced inside the solenoid will be :
Correct answer: A. B = µ°NI ℓ
- A. B = µ°NI ℓ
- B. B = µ ℓ / °Nℓ
- C. B = Nℓ / °ℓ
- D. B = µ ℓ ℓ / °N
Explanation
According to Ampere's law, the magnetic field (B) produced inside a solenoid is directly proportional to the product of the permeability of free space (µ₀), the current (I) flowing through the solenoid, and the number of turns per unit length (N/ℓ). Mathematically, it is represented as: B = µ₀NI/ℓ
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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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