Question

Q1. i) Will the current flow from A to C, for the connection shown in Figure. 12 Support your answer (11 with proper reasons. Both D1 and D2 are silicon diodes. D1 D2 A_* B Figure 1 ii) Draw the equivalent circuit diagram for Ideal Diode under forward bias and reverse bias. iii) Determine the value of I for the circuit shown in Figure. 2 R - 5V 15.2 V 5 kΩ Ge Figure 2 iv) Compute Vo and Ir for the circuit shown in Figure. 3 121 Vin 12V RL 32.50 VO 121 Figure 3 W) Determine the current through each diode for the circuit shown in Figure. 4 R1 500 V1 10 V Si 11 R2 w 2 kn Figure. 4 Ge

Answer 1

A toc. No. the current cannot flow from This is because if terminal A is positive and c is negative De will be reverse biased. If A is negative and C is positive Da will be reverse biased. Therefore in any case either of the diode will be reverse biased resulting in non- flow of current from A to C. + B Forward bias Reverse bias POST OTHER QUESTIONS SEPERATELY