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JEE Main202524 Jan 2025Morning ShiftPhysicsAlternating CurrentActual

An alternating current is given by I = I _ A t + I _ B t . The r.m.s current will be

Options

  1. A| I _ A + I _ B | 2
  2. BI _ A ^2+ I _ B ^2 2
  3. CI _ A ^2+ I _ B ^2
  4. DI _ A ^2+ I _ B ^2 2

Correct answer

B. I _ A ^2+ I _ B ^2 2

Step-by-step solution

aligned & I=I_ A t+I_B t & I_ ma = I_A^2+I_B^2 & So, I_ RMS = I_A^2+I_B^2 2 aligned

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