I Review | Constants Part A Unlike the idealized voltmeter, a real voltmeter has a resistance that is not infinitely large. A voltmeter with resistance Ry is connected across the terminals of a battery of emf E and internal resistance r. Find the potential difference Vmeter measured by the voltmeter. • View Available Hint(s) ? Vmeter = Submit Previous Answers

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Ā QUESTION 1 Five cylindrical wires are made of the same material. Their lengths and radii are wire 1: length f, radius r wire 2: length 38/2, radius r/2 wire 3: length f/2, radius r/2 wire 4: length , radius r/2 wire 5: length 5, radius r/2 Rank the wires according to their resistances, least to greatest. OA. 1, 3, 4, 2, 5 OB. 1 and 2 tie, then 5, 3, 4 OC. 1, 2, 3, 4, 5 OD. 5, 4, 3, 2, 1 OE. 1, 2, 4, 3, 5 JURITY WY

Constants In the circuit shown in the figure (Figure 1), the 6.0 N resistor is consuming energy at a rate of 30 J/s when the current through it flows as shown. Part A Find the current through the ammeter A. Express your answer with the appropriate units. Figure 1 of 1 HA 20.0 1 I = Value Units 170 Submit Request Answer 6.0 N 20.0 N 190 25 V 3.0N Part B What are the polarity and emf of the battery E, assuming it has negligible internal resistance? 13 N 1.0N Express your answer with the appropriate units. Enter positive value if the polarity of the battery is the same as shown the figure and negative value in another case.