What is the new reading of the ammeter?
Express your answer in terms of E, rA, rint, and R.
To understand the role of the internal resistance of various devices and the use of the ammeter and the voltmeter. Submit Previous Answers Correct Consider the circuit shown. All wires are considered ideal; that is, they have zero resistance. We will assume for now that all other elements of the circuit are ideal, too: The value of resistance R is a constant, the internal resistances of the battery (int) and the ammeter (TA) are zero, and the internal resistance of the voltmeter Tv) is infinitely large.