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AP EAMCET201822 Apr 2018Morning ShiftPhysicsMathematics in PhysicsActual

Two resistance 60.36 W and 30.09 W are connected in par al lel. The equiv a lent resistance is

Options

  1. A20 ± 0.08 W
  2. B20 ± 0.06 W
  3. C20 ± 0.03 W
  4. D20 ± 0.10 W

Correct answer

A. 20 ± 0.08 W

Step-by-step solution

Equivalent resistance is R_ parallel = R₁ R₂ R₁+R₂ = 60 30 60+30 =20 and tolerance value is aligned R_P & =R_P R₁ R₁ + R₂ R₂ - R₁+ R₂ R₁+R₂ & =20 0.36 60 + 0.09 30 - 0.36+0.09 90 & =20 0.006+0.003-0.005 =0.085 aligned So, resistance in parallel is R_P=20 0.08

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