Ri R3 R4 7 points, suggested time 13 minutes) A student assembles a circuit with four resistors connected to a 15 V battery, as shown above. Let /, be the current through resistor R12 be the current through resistor R2. and so on. The ranking of the resistances of the resistors is R4 >R > R2 > R (a) Rank the four currents / through 14 in order from greatest to least. If any of the currents are the same indicate that explicitly Ranking: Briefly explain your reasoning. (b) The student connects a separate voltmeter across each resistor. Let Δνί.a½.ay, and Δν, be the voltmeter readings across resistors Ri, R2, R3, and R4. respectively. The student measures Δν-IV and Δν,-9 V. Based on these measurements, determine the voltmeter readings Δν, and Δν Briefly explain your reasoning. (c) The student now connects a wire from point A to point B. When this wire is connected, does the current in resistor R increase, decrease, or stay the same? __ Decrease Stay the same _ Increase Briefly explain your reasoning.