Verified Solution • 2025–26 Session moderate

QJEEM23Pha813: JEE Main 2023 Physics - Class 12 JEEM23Pha813 Solution: A long solenoid is formed by winding 70 turns cm − 1 . If 2.0 A …

A long solenoid is formed by winding 70 turns cm−1. If 2.0 A current flows, then the magnetic field produced inside the solenoid is ____________ (μ0=4π×10−7 TmA−1)

Multiple Choice Options

  • A 88×10−4 T
  • B 1232×10−4 T
  • C 176×10−4 T
  • D 352×10−4 T

Step-by-Step Verified Solution

Number of turns per meter =7000=7000 turns per m\mathrm{m}

i=2 AB=μ0ni=4π×10−7×7000×2=56π×10−4 T=56×227×10−4 T=176×10−4 T

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