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The resistance of each line cannot exceed 0.006 O, and the maximum current drawn by the load is 110 A. What gage wire should be used?
Determine the cross-sectional area required to carry a current of 5000 A.
Charge is flowing through a conductor at the rate of 420 C/min. If 742 J of electrical energy are converted to heat in 30 s.
The potential difference between two points in an electric circuit is 24 V. If 0.4 J of energy were dissipated in a period of 5 ms.
Determine the number of hours at a drain current of 150 mA, and compare the ratio of drain current to the resulting ratio of hours of availability.
What does it tell you about the force of attraction between charges as they are separated?
Which system of Table is closest in definition to the SI system? How are the two systems different?
Express the numbers in what seems to you the most logical form for future calculations.
Perform the operations and express your answer in engineering notation.
A half-wave rectifier circuit with a 1-kO load operates from a 120-V (rms) 60-Hz household supply through a 12-to-1 step-down transformer.
At what forward voltage does a diode conduct a current equal to 10,000IS?
What happens if the transistor is replaced with another having ß=100? Give the value of VC in the latter case.
For what load resistance connected to ground is the output negative voltage limited to -1 V before Q7:begins to conduct?
CMRR Assume ß = 100, |VBE | = 0.7 V, |VA | = 60 V, Vt = 0.7 V, and kO (W/L) = 2 mA/V2.
Find A1, A2, the open-loop voltage gain, the input common-mode range, and the output voltage range.
Design so that all transistors operate at 0.2-V overdrive voltages. Specify the W/L ratio required for each MOSFET.
With A and B at a dc voltage of VDD/2, perform a dc design that will result in each of Q1:Q2:Q3:and Q4: conducting a drain current of 200 µA .
Find the input resistance of the first stage, and the current gain from the input of the first stage to the collectors of the second stage.
What should this resistor be changed to if the output resistance is to be reduced by a factor of 2?
Find the dc voltage at the output. Assume /VBE /= 0.7V, ß = 100, and neglect the Early effect.
Now, using ß=100, find the voltage gai vo/(v+ -v-), and in the process, erify the polarity of the input terminals.
Show that if all transistors are operated at an overdrive voltage VOV and have Equal Early voltages /VA .
Find the currents labeled i1 to i13 in terms of (gmvid ). Determine their values in the sequence of their numbering and assume gmro.
This problem investigates the effect of transistor mismatches on the input offset voltage of the current-mirror-loaded MOS differential amplifier.
What will the voltage gain be if the input resistance of the subsequent stage is equal to Rid of this stage?