Question:medium

A 0.5 m long solenoid has 400 turns and carries a current of \( 3 \, \text{A} \). What is the magnetic field at the center of the solenoid?

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Remember: The magnetic field inside a solenoid depends on the current, the number of turns, and the length of the solenoid. Increasing the number of turns or current increases the magnetic field.
Updated On: Nov 26, 2025
  • \( 2 \times 10^{-2} \, \text{T} \)
  • \( 3\times 10^{-2} \, \text{T} \) 
     

  • \( 6 \times 10^{-2} \, \text{T} \)
  • \( 8 \times 10^{-2} \, \text{T} \)