5. In a series RC circuit, R = 5 ohms, C = 0.01 F, and E = 100 V. When t 0, i = 0. Find the charge at any time t. Answer: Q = 1-e-201

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

Fill in the blanks: Given the model for position control system, find the value for K1 and K2 so that the peak time is equal to 0.5 s and the %OS is equal to 3%. K1= 93.2070 K2= 0.129 I 446 23

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?

2. Please respond to question in attached image.  Thank you.

Question 5 Assume the zener diodes are all ideal in the circuit below and let V1=3.7 V, R1=935 2, R2=1,04702, and R3=855. Determine the output voltage Vo. Express your answer in Volts and round to the 1st digit to the right of the decimal. R1 V1 D1 5V R2 D2 3V {R3 D3 2V Vo

Calculate the equivalent resistances Rin of the following circuits. (The resistance value of the diodes in the conduction will be 0, the resistance value of the diodes in the insulation will be taken as infinity. R1=10ohm