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What is equation of wheatstone bridge …

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What is equation of wheatstone bridge principl???
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Yogita Ingle 4 years, 8 months ago

Wheatstone bridge

  • Wheatstone bridge is a special arrangement of resistors as shown in the figure.
  • There are 4 resistances R1,R2,R3and R4 arranged in such a manner thatthere is a galvanometer placed between the points B and D.
  • The arm BD is known as galvanometer arm. AC is known as battery arm.
  • And circuit is connected to the battery across the pair of diagonally opposite points A and C.
  • According to Wheatstone bridge principle:-
    • If (R1/R2)=(R3/R4), then Bridge is said to be balanced.
    • If the bridge is balanced there is no current flowing through the galvanometer arm.
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