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1 . Sketch the waveforms for the load current and voltage for Figure 2-73. Show the peak values.
FIGURE 2-73
3 . Consider the circuit in Figure 2-75.• (a) What type of circuit is this? • (b) What is the total peak secondary voltage? • (c) Find the peak voltage across each half of the secondary. • (d) Sketch the voltage waveform across RL. • (e) What is the peak current through each diode? • (f) What is the PIV for each diode?
FIGURE 2-75
16. To what value must R be adjusted in Figure 2-79 to make IZ = 40 mA? Assume that VZ = 12 V at 30 mA and ZZ = 30Ω.
FIGURE 2-79
17 . Assume the output of a zener regulator circuit drops from 8.0 V with no load to 7.8 V with a 500Ω load. What is the percent load regulation?
18. Each part of Figure 2-84 shows oscilloscope displays of rectifier output voltages. In each case, determine whether or not the rectifier is functioning properly and, if it is not, what is (are) the most likely failure(s). Assume all displays are set for the same time per division.
FIGURE 2-84
A parallel-plate capacitor is charged to a potential V0, charge Q0 and then disconnected from the battery. The separation of the plates is then halved. What happens to (a) the charge on the plates
Describe why the intrinsic carrier concentration changes with temperature. This would include from very cold temperatures to 600K+ temperatures. Why does an extrinsic semiconductor become intrinsic above ~ 500K
DC supply=18v Motor Noload speed=9,000RPM 018V ton=40% -60% in 10ms in 5 steps a) Calculate B for each of the 5 steps b) calculate Vavrage over 10ms c)calculate no load speed d)draw a linear graph including the 5 steps over 10ms
The manufacturer of a 9Volt dry cell flashlight battery saysthat the battery will deliver 20mA for 80 continuous hours. Duringthat time the voltage will drop from 9Volts to 6 Volts. Assume thedrop in the voltage is linear with time.
The program will store these values into an array and call a function that will return the average of the temperatures. It will also call a function that will return the highest temperature and a function that will return the lowest temperature.
A plumber is using an electric drill in a basement with a concrete floor.Assume his total body resistance from hands to feet is 1k ohm.The drill has a metal case that is connected to the ground wire in the 3-prong plug.
How to Calculate the value of Ceramic / Non-Polarized Capacitors? and how to Find the value of Ceramic Capacitors?
a) the total charge in the device at t = 3 s, assume q(0) = 0 (round to three decimal places) b) the power consumed by the device at t = 1 s (round to three decimal places)
Review of available DC circuit breaker technology for EV applications. Limitation and their principle of operation and implementation of a simulation model of the selected DC circuit breaker.
Two point charges, Q1 =30 C and Q2 =-100 C,are located at (2,0,5) m and (-1,0,-2) m, respectively. Find the force on Q1 and Q2.
The function f(t) is given as f(t) = [cost] -infinity
Using SR Flip-flops and NAND gates, design a system that outputs 1 if it takes an even number of clock cycles to recognize the pattern 11-0-101. Otherwise it outputs 0.
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