The next two parts of the problem will require you to use the math type box to enter an equation for Kirchhoff's loop rule in terms of variables only. An example problen with what the required formatting should look like for the system to recognize it as a correct answer is provided below. Example: Apply the loop rule to loop abgefa, using variables instead of values. (i.e. E1, l2, R1, r2 etc.). Use the Mathtype Editor (orange box). 0 Use subscripts using the menu in the math editor. 0 The answer is case sensitive (use R and r differently as appropriate). 0 When forming the product IR, don't forget the multiplication sign. Enter lFl as l' Fl. Solution: (d) Kirchhoff's loop rule applied to loop afedcba (traverse the loop counterclockwise). Fill the blanks in terms of left-hand side in terms of the variables R, r. |. E1, E3, and E4. Do not use numerical values. l ll = 0 (e) Kirchhoff's loop rule applied to loop cdegbc (traverse the loop clockwise). Fill the blanks in terms of left-hand side in terms ofthe variables R, r, I, E2, E3 and E4. l ll =0 Think: Will Kirchhoff's equations in parts (d) and (e) still be valid if the loops are traversed in the opposite sense instead