23 verified questions · ~25 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).
An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then :
The electric field in an electromagnetic wave is given by E⃗ = î 40 cos ω(t − z/c) N C⁻¹. The magnetic field induction of this wave is (in SI unit) :
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