36. Eight 20 A-hr lead-acid cells are arranged as in the drawing below (top view). What is the votage and A-hr capacity of this battery? a. 8,40 b. 16,40 C. 8, 20 d. 16, 6 +

Question #7 Find the voltage V at the junction of the diodes (marked as red). Assume all the diodes are ideal. 7V 1 k2 D1 1 k2 D4 Vo 1 k2 6V D2 9v D3 1 k2 -6V (a) 4V (b) 0V (c) 2V (d) 1V (e) -4V (f) -2V (g) -2.5V

2. A bank of nickel-cadmium cells is used as the emergency lighting supply for a hospital. There are 100 cells connected in series and each has an A-hr rating of 120 A-hr. The bank has to be replaced, and the manufacturer is no longer supplying nickel-cadmium cells. It is decided to replace the cells with lead-acid cells. How many lead-acid cells will be required if each has an A-hr rating of 60 A-hr, and how should they be connected?

Determine the output voltage V out of the circuit shown in Figure. However, when the Zener diode is forward biased, the voltage of both ends is approximated to 0.7V.