I need help solving part B, I keep getting the wrong answer.

Review | Constants The magnitudes of the current density and the diameters for wires 1 and 2 are given in the table. The current direction Consider the junci Wire Current density Diameter [mmm) 2.1 30 Part A Find the current Is in wire 3 Express your answer in amperes to two significant figures. Call current out of the junction positive and * View Available Hintis) Ja = -25 A Previous Answers Correct Correct answer is shown. Your answer -25.24 A was either rounded differently or used a differ Important: If you use this answer in later parts, use the full unfounded value in your calculations. Should you need the answer obtained in this Part subsequently, use the unrounded answer. Part B Find the magnitude of the current density Ja in wire 3. The diameter of wire 3 is 1.5 mm Express your answer in amperes per square millimeter to two significant figures. View Available Hint(s) A/mm Figure Ja - Figure