Question 6 2.5 pts B6.2 For the circuit shown, the reading of the galvanometer was zero and the unknown electromotive is found to be = 3.4 V. If L₁ + L2 = 56 cm, then the length L, (in cm) is: 15.3 6.6 4.2 18.7 10.4 C B 3 V Question 6 B6.2 For the circuit shown, the reading of the galvanometer was zero and the unknown electromotive is found to be Є = 3.4 V. If L₁ + L2 = 56 cm, then th x length L₁ (in cm) is: