In Exercise 46, suppose instead that the ammeter is connected in series with the resistor and that
Question:
(a) Sketch this circuit (with instruments connected) and use it to explain why the correct resistance is not given by R = V/I, where V is the voltmeter reading and I is the ammeter reading.
(b) Show that the actual resistance of the element is smaller than the result in part (a) and is instead given by R = (V/I) – RA, where RA is the resistance of the ammeter.
(c) Show that the result in part (b) reduces to R = V/I for an ideal ammeter.
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