Need help for part 3 only as other parts have been answered

Part 1) Update Which of the following affects the resistance of a resistor? The potential energy supplied by the battery Resistivity of the material Dimensions of the resistor The current in the circuit Your answer is partially correct. The resistance of the material depends on its length, cross-sectional area, and resistivity, not the current You have correctly answered this part. Marks for this submission: 0.25/0.33. Accounting for previous tries, this gives 0.17/0.33. This submission attracted a penalty of 0.00. Total penalties so far: 0.11. Part 2) Calculate the total charge that passes through a resistor in time At = 9.97 hours when a current of I = 8.16 A flows through the resistor. Aq = 292878.72 C Your last answer was interpreted as follows: 292878.72 Correct answer, well done. You have correctly answered this part. Marks for this submission: 0.33/0.33. Part 3) If the radius of the resistor is doubled and everything else is left the same, find the new current flowing through the circuit. 12 = A