1. The amplifier circuit shown below uses a silicon transistor. The capacitors C

a. The input resistance R

b. The input resistance R

c. The input resistance R

d. The input resistance R

Solution: https://www.youtube.com/watch?v=E48_Y4CYKIU

2. In the silicon BJT circuit shown below, assume that the emitter area of transistor Q

a. 0.5 mA

b. 2 mA

c. 9.3 mA

d. 15 mA

Solution: https://www.youtube.com/watch?v=jWdra3gmHK0

3. Assuming the OP-AMP is ideal, the voltage gain of the amplifier shown below is

a. - R

b. - R

c. - (R

d. - (R

Solution: https://www.youtube.com/watch?v=-GMfvkT72y0

4. The transfer characteristic for the precision rectifier circuit shown below is (Assume ideal OP-AMP and Practical Diodes)

Solution: https://www.youtube.com/watch?v=K2Rp0dv6Ll0

Consider the common emitter amplifier shown below with the following circuit parameters.

β = 100, g

5. The resistance seen by the source V

a. 258 Ω

b. 1258 Ω

c. 93 KΩ

d. ∞

6. The lower cutoff frequency due to C

a. 33.9 Hz

b. 27.1 Hz

c. 13.6 Hz

d. 16.9 Hz

Solution: https://www.youtube.com/watch?v=FdpAV2BR7Fc

_{C}and C_{E}can be assumed to be short at signal frequency and effect of output resistance r_{o}can be ignored. If C_{E}is disconnected from the circuit, which one of the following statements is TRUE.a. The input resistance R

_{i}increases and magnitude of voltage gain A_{V}decreasesb. The input resistance R

_{i}decreases and magnitude of voltage gain A_{V}increasesc. The input resistance R

_{i}decreases and magnitude of voltage gain A_{V}decreasesd. The input resistance R

_{i}increases and magnitude of voltage gain A_{V}increases2. In the silicon BJT circuit shown below, assume that the emitter area of transistor Q

_{1}is half that of transistor Q_{2}. The value of current I_{o}is approximatelya. 0.5 mA

b. 2 mA

c. 9.3 mA

d. 15 mA

3. Assuming the OP-AMP is ideal, the voltage gain of the amplifier shown below is

a. - R

_{2}/R_{1}b. - R

_{3}/R_{1}c. - (R

_{2}|| R_{3}) / R_{1}d. - (R

_{2}+ R_{3})/R_{1}4. The transfer characteristic for the precision rectifier circuit shown below is (Assume ideal OP-AMP and Practical Diodes)

**Common Data Questions:**Consider the common emitter amplifier shown below with the following circuit parameters.

β = 100, g

_{m}= 0.3861 A/V, r_{o}= 259 Ω, R_{S}= 1 KΩ, R_{B}= 93 KΩ, R_{C}= 250 Ω, R_{L}= 1 KΩ, C_{1}= ∞ and C_{2}= 4.7 µF.5. The resistance seen by the source V

_{S}isa. 258 Ω

b. 1258 Ω

c. 93 KΩ

d. ∞

6. The lower cutoff frequency due to C

_{2}isa. 33.9 Hz

b. 27.1 Hz

c. 13.6 Hz

d. 16.9 Hz