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? asked in Science & MathematicsPhysics · 6 years ago

physics please?

Update:

Any real ammeter has a nonzero resistance. (a) An ammeter with resistance RA is connected in series with a resistor R and a battery of emf ε and internal resistance r. The current measured by the ammeter is IA. Find the current through the circuit if the ammeter is removed so that the battery and the resistor form a complete circuit. Express your answer in terms of lA, r, RA, and R.

2 Answers

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  • Newton1Law
    Lv 6
    6 years ago
    Favorite Answer

    Current without the Ammeter = IA(RA+r+R) / (R+r)

    Hope this helps,

    Newton1Law

  • oldschool
    Lv 7
    6 years ago

    never awards best answer

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