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for each the following baseband signals:(i) m(t)=cos1000t cos3000t:
a sketch the spectrum of m (t).
b sketch the spectrum of the DSB-SC signal m(t) cos10,000
Design a common-emitter BJT amplifier with a gain of -100 (well above 3dB point) and a 3dB point at 100Hz. Assume beta = 100, Ic (quiescent) = 1mA, Vcc=20V. You can omit the output capacitor, but should bypass your emitter resistor.
write a script that will call: a function to prompt the user for an angle in degrees and call a function to calculate and return the angle in radians (note:pi radian =180) and call a function to print the result.
Power Factor, A single phase electric motor has an output power of 10 kW and an efficiency of 90% at full load. The motor is fed from a 240 V supply via a cable that has a resistance of 10 milli ohms per metre length.
What are the positive and negative implications of wireless energy?
An AM broadcast receiver's pre-selector has a total effective Q of 90 to a received signal at 1180 kHz and uses an IF of 455 kHz. Calculate the image frequency and its dB of suppression.
Each start/stop station contains one NO start pushbutton and one NC stop pushbutton.
In 1988, the average wage rate was $9.45 an hour and in 2008 the average wage rate was $18.00 an hour. The CPI in 1988 was 118.3 and in 2008 it was 215.3 . Which real wage rate is higher?
A series circuit has a DC voltage source (56 volts), a resistor, (72 ohms), a capacitor (82 farads), and a switch. The capacitor is initially uncharged and the switch closes at t=0.
a 10uF capacitor is plugged into a 110v rms 60 hz voltage source with an ammeter in series. what is the rms value of the current through the capacitor?
An electric heating element is connected to a 110 v circuit and a current of 3.2 A is flowing through the element. How much energy is used up during a period
Would you be willing to have a Smart Meter connected to your house and collecting your electric usage information and sharing it with your local utility company?
Efficiency of MOSFET circuit provide in datasheets of any product is measured at transient state of my output node or staedy state?
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