Physics, asked by Aakrit1186, 9 months ago

The four resistors 20, 40, 20+x,80 respectively form a wheatstone bridge.find the value of x

Answers

Answered by HrishikeshSangha
2

As in the wheatstone bridge the ration resistance are equal to 1 only if the system has the equal resistant.

  • That is the R₁/R₂=R₃/R₄.
  • Here R₁=20
  • R₂=40
  • R₃=20+x
  • R₄=80
  • To find the x we need to calculate the ratio
  • Therefore putting values 20/40=20+x/80
  • 1/2=20+x/80
  • Further simplifying 80=2×(20+x)
  • 80=40+2x
  • 80-40=2x
  • 40=2x
  • x=20
  • That is the value of x.
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