22 verified questions · ~24 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
Let B₁ be the magnitude of magnetic field at center of a circular coil of radius R carrying current I. Let B₂ be the magnitude of magnetic field at an axial distance 'x' from the center. For x : R = 3 : 4, B₂/B₁ is:
In an adiabatic process, which of the following statements is true?
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