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NEET2019PhysicsCurrent ElectricityActual

In the given circuit, find voltage across 12 resistance.

Options

  1. A12 Volt
  2. B36 Volt
  3. C72 Volt
  4. D48 Volt

Correct answer

D. 48 Volt

Step-by-step solution

If R ₁ be the equivalent resistance of parallel resistors 8 , 8 and 4 , then 1 R ₁ = 1 8 + 1 8 + 1 4 = 4 8 R ₁=2 Total resistance of upper branch, R ₂= R ₁+4=2+4=6 Now circuit can be redraw of By current division rule, current through 12 resistor I ₂= 12 6 12+6 =12 1 3 =4 ~A Voltage across 12 resistor V = I ₂ R =4 12=48 ~V

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