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In designing a signal-switching circuit, it was found that a 100-µF capacitor was needed for a time constant of 3 ms. What value resistor is necessary for the circuit?
a 9.1 v zener diode exhibits its nominal voltage at a test current of 28 mA . at this current the incremental resistance is specified as 5 ohms . find Vz0 of the zener model . find the zener voltage at a current of 10 mA and at 100 mA.
Two identical 90? couplers with C = 8.34 dB are connected as shown below. Find the resulting phase and amplitudes at ports 2 and 3 , relative to port 1.
Determine the magnitude of the signal source voltage to produce an output signal voltage of 1.0 V. What value of load resistance would halve the signal voltage output for the same input?
in the bottom of the 9th inning, the bases are loaded and the braves are down by three runs. chipper johns steps to the plate. twice he swings and misses. The crowd heads for the exits. the next pitch is a fast ball down the middle.
The current through a 2-μF capacitor is shown in Figure. At t = 0, the voltage is zero. Sketch the voltage, power, and stored energy to scale versus time.
The noise temperature at the receiver antenna terminals is T0=290K. The equipment and environment suggest that 6dB of margin be used to assure performance under all conditions. For reliable voice communications, a received signal should be 17dB ab..
A 10-µF capacitor is charged to a potential of 100V. At time zero it is discharged through a 1-M ohm resistor. What is the time constant for this system
Design a filter with lower frequency cut-off: 10Hz, upper frequency cut-off: 2KHz, gain of 5, and an input resistance greater than 5kOhms.
David is driving at a steady 30 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.0 m/s2 at the instant when David passes. How far does Tina drive before passing David
The output of a voltage follower is to be within .02% of the ideal value. What is the minimum op amp open loop gain that is required
The steering wheel has backlash. This means there is a delay between the time the wheel is turned, and the time the car responds. The driver tends to overturn, which leads to instability and lack of control of the car.
A testing laboratory adjusts the magnetic field until the proton's cyclotron frequency is 10.0 MHz. At this field strength, the Hall voltage on the probe is 0.543 mV when the current through the probe is 0.15 mA.
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