jee_main_2025_29_jan_evening - Moving Charges and Magnetism Topics

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QUESTION #21 Ampere's Circuital Law and Solenoid
The magnetic field inside a 200 turns solenoid of radius 10~cm is 2.9 × 10⁻⁴ Tesla. If the solenoid carries a current of 0.29~A , then the length of the solenoid is ______ π ~cm.
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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