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PhysicsJEE Main 28 Jan 2026, Shift 1·Q2·MCQ·Easy–moderate

Alternating Current · AC basics and single elements

The electric current in the circuit is given as i=i0(t/T)i = i_0(t/T). The r.m.s current for the period t=0t = 0 to t=Tt = T is
  1. (1)i02\dfrac{i_0}{\sqrt2}
  2. (2)i0i_0
  3. (3)i06\dfrac{i_0}{\sqrt6}
  4. (4)i03\dfrac{i_0}{\sqrt3}

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See the full 28 Jan 2026, Shift 1 paper