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A galvanometer, having a resistance of 50 subscript straight capital omega comma gives a fall scale deflection for a current of  0.05 A The length in metre of a resistance wire of are of cross-section 2.97cross times 10 to the power of negative 2 space end exponent c m to the power of negative 2 end exponent that can be used to convertt the galvanometer into an ammeter which can read a maximum of 5 A current is (specific resistance of wire=5 cross times 10 to the power of negative 7 end exponentΩm )

PhysicsGeneral

  1. 1.5
  2. 6
  3. 8
  4. 3

    Answer:The correct answer is: 3

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