The specific heat of aluminum is 0.902 J/g°C.  How much energy does it take to change the temperature of aluminum by 1.00°C for 1.00 g of the metal?

Consider the circuit configuration shown in Figure 4a below. Both transistors Q1 and Q2 have |Vt | = 0.5V,

If the widths of transistors Q1 and Q2 are doubled while the resistance, R, and all other transistor parameters are kept constant (e.g. R, VSG, |Vt| are constant), what happens to the drain current in the circuit of Figure 4a?

Question 3 has 3 sub-questions focusing on a diode circuit used as a voltage protection circuit (e.g. electrostatic discharge protection). 3a = 6pts, 3b = 6pts, 3c =8pts SHOW YOUR WORK FOR ALL ANSWERS.

Question 2 has 4 sub-questions focusing on a closed-loop amplifier using an ideal operational amplifier. 2a = 10pts, 2b = 10pts, 2c = 5 pts, 2d = 5pts SHOW YOUR WORK FOR ALL ANSWERS.

c)  Consider the MOSFET cross-section of Figure 1c below. What type of MOSFET is this and in which region is this MOSFET operating (e.g. saturation, triode, etc) ? HOW do you know this? NOTE: current iD is flowing in this diagram.                                                Figure 1c

b)   For the circuit in Figure 4a, find the transistors’ width-to-length ratios and resistance R required to establish a drain current of 400

Consider the closed-loop amplifier configuration shown in Figure 2a, and assume that the op-amp is ideal.                                          Figure 2a   a) Derive an expression for the voltage gain (vo/vi) of the amplifier configuration given in Figure 2a.  Express this voltage gain in terms of R1, R2, R3, etc.

Select the best choice answer. a)  The primary function of a difference amplifier is to:    Reject common-mode signals and amplify the difference between two input signals   Amplify both input signals equally   Act as a voltage follower   Integrate the input voltage over time

The following 5 sub-questions are short-answer or multiple-choice questions that cover a variety of our Midterm Exam topics. 1a =5pts, 1b = 5pts , 1c = 5pts, 1d = 5pts, 1e = 5pts