8. The input waveforms applied to a 4-input AND gate are as indicated in Figure 3-81. The output of the AND gate is fed to an inverter. Draw the net output waveform of this system. FIGURE 3-81

What are the dc output voltages V1 and V2 for the rectifier circuit shown. if vI = 40sin377t and C =20,000 μF?

In step 2 you measured the voltage across each of the LEDs. This is their “forward voltage” that is referred to in the LED component page, which is the voltage required to light the LEDs. Notice that the combined forward voltage of D1 and D2 is greater than 3.3V, the LEDs will not light up at all. You should also have noticed that the forward voltage for one of the LEDS is lower than the forward voltage for the other LED. Some LEDS require less energy to light than others. Since D1 and D2 are in series, the same current will flow through each, but the different voltages across each LED reflect the different energy requirements. Finish each statement below, bears on this information and in the measurements you took in step 2 The measured forward voltage across D1 in this step is ________ The measured forward voltage across D2 in this step is ________

Q3. For the 4-input NAND gate in Figure 3-33, operating as a negative-OR gate, determine the output with respect to the inputs. A B C

The diodes in the following circuit are made of Silicon, that is, VD = 0.7 V. Determine IDI. ID. IDs and VA when (a) R3 = 14 kQ, R4 = 24 kQ; (b) R3 = 3.3 k2, R4 = 5.2 k D3 1p3 wwog +15 V -10 V D₂ Ip2 R4 R = 6.15 kΩ D₁ Ip R3 -5 V wli - Vo R₂ = 2kQ2

Which statement is not true about an extrinsic semiconductor? They do not have equal numbers charge carriers. Their impurities do not affect their electrical behavior. They can be doped with another element by a process known as doping process. They are chemically not pure. Their electrical properties can be tuned.

30. For the input waveforms in Figure 5-61, what logic circuit will generate the output waveform shown? A Inputs B C Output X FIGURE 5-61 ad points in the proper rela.

Rather than use transistors your friend W. Too wants to use diodes to implement logic gates. He shows you the circuit he designed shown in figure 5. If A and B can swing all the way from 0 V to VDD, does the circuit implement a logic gate? If so what gate is it and what is its static discipline? Assume the diode is modeled by an ideal diode with a series resistance RD V. DD R₁ L ΟΥ AO Bo Figure 5: Diode Based Logic Gate

Explain diagram

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