The circuit below is a variable gain amplifier. Suppose Rf =1000 Ohm, JFET has the threshold voltage of -0.3V and corresponding resistance shown in the table, what is the maximum and minimum gain for this amplifier as the control voltage is varied from 0 to Vth? DC control voltage of JFET (V) Resistance of JFET (Ohm) 0.0 200 -0.3 infinite

Suppose we apply 3.5V to Node A of the following resistor network, what would be the output voltage at Node B? Express your answer in volts.

For an ideal comparator in the following configuration, what is V_out?

For the given oscilloscope screen, calculate peak-to-peak voltage of the signal (in Volts). Note: volt/div = 2 Volts/div            time/div = 1 ms/div  

Study showed that 83% of toddlers play in the same-gender groups.  Select a random sample of 12 toddlers.  Find the probability that 6 out of 12 toddlers will play in the same-gender groups.

The following table shows the number (in thousands) of earned degrees conferred in the year 2000 by the degree level and gender.  Associate Bachelor Master Doctor totals male 208 502 187 27 924 female 323 659 227 19 1228 totals 531 1161 414 46 2152 A person who earned a degree in the year 2000 is randomly selected. Find the probability that a randomly selected person will be a male with a Bachelor degree.

Roll a fair 6-sided die once.  Observe the number of dots on the top. Event A: “a roll of a fair 6-sided die produced 2 on top” Event B: “a roll of a fair 6-sided die produced an even number on top” Classify these events as:

In a typical day, 32% of people in the United States with Internet access go online to get news. Find the probability that in a random sample of 26 people with Internet access, at least 13 of them will go online to get news.

The following table shows the number (in thousands) of earned degrees conferred in the year 2000 by the degree level and gender.  Associate Bachelor Master Doctor totals male 208 502 187 27 924 female 323 659 227 19 1228 totals 531 1161 414 46 2152 A person who earned a degree in the year 2000 is randomly selected. Find the probability that a randomly selected person will be either a person with a Doctorate degree or a male.

The following table shows the number (in thousands) of earned degrees conferred in the year 2000 by the degree level and gender.  Associate Bachelor Master Doctor totals male 208 502 187 27 924 female 323 659 227 19 1228 totals 531 1161 414 46 2152 A person who earned a degree in the year 2000 is randomly selected. Find the probability that a randomly selected person will be either a person with a Doctorate degree or a male.