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AP EAMCET201822 Apr 2018Morning ShiftPhysicsCurrent ElectricityActual

The equivalent resistance between A and B is 6 . The value of R₁ is

Options

  1. A20
  2. B10
  3. C5
  4. D25

Correct answer

B. 10

Step-by-step solution

Here 2 and 3 resistances are short circuited, so circuit can be reduced as array rlrl & & R_ A B & = 15 R₁ 15+R₁ =6 & 15 R₁-6 R₁ & =15 6 & 9 R₁ =90 & R₁ =10 array

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