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A transconductance amplifier with Ri = 2 kΩ, Gm = 40 mA/V , and Ro = 20kΩ is fed with a voltage source having a source resistance of 2kΩ and is loaded with a 1kΩ resistance. Find the voltage gain realized (from the source internal voltage to the output)?
Two short antennas each of length 10cm at the origin carry identical currents of I = 5 Sin (wt). One is in the az direction and the other one is in the ay direction. If the frequency of the antenna is 60 MHz then calculate
If the voltage across a capacitor is a square wave, predict the resulting current waveform (draw the voltage and current waveforms). Repeat the process when the voltage across the capacitor is a sine wave.
A lossless transmission line with the electrical length of l = 0.3 lamda and the characteristics impedance of Z0 = 75 is terminated with a complex load ZL = 30 -j20 calculate the reflection coeficient at the load, the SWR on the line
A microstrip antenna system operating at 915MHz must be designed using Rogers RO3010 substrate with the thickness of 0.635mm. The microstrip antenna should be connected to a microstrip feeding line of Zf=50O through a quarter-wavelength
The open-loop gain of a compensated op-amp is measured as follows:5.1´103 at100 kHz and 8.3´103 at10 kHz. Calculate its 3dB frequency, its unity-gain frequency, and its dc gain.
If the collector of a transistor is connected to the base terminal, the transistor continues to operate in the forward-active mode, since the B-C junction is not reverse biased biased. Determine the small-signal resistance, re=Vce/Ie
Consider the following matrix of expected profits (in units of $1K) versus potential future material price scenarios (P1 - P5), for five different designs (D1 - D5): P1 P2 P3 P4 P5 D1 10 20 30 40 50 D2 20 25 25 30 35
Solar Cell Consider a GaAs PN junction solar cell with the following parameters. Na=10^17 cm^-3, Nd= 2*10^16 cm^-3, Dn=190 cm^2/s, Dp=10 cm^2/s, Tn0=10^-7s, and Tp0=10^-8s.
Design a multistage op ampbased amplifier that has a gain of -900 V/V and a bandwidth of atleast 120 kHz. You have Op Amps with unity gainbandwidths of 2 MHz and 3 MHz. Each has a slewrate of 6 V/ms.
a motorcycle battery delivers around 10 Volts DC, at an ampacity of about 500 Amps. this voltage goes through ignition (transformer) and it delivers about 30 KV to each spark plug. What is the turn ratio (Ns/Np) and the resulting ampacity on secon..
Devise a system that will convert this temperature range into an 8-bit digital word with conversion from 00H to 01H at 200°C and from FEH to FFH at 350°C . An ADC is available with a 2.500-V internal reference. At 200°C a type K TC produces 8.13 m..
The filter is to have less than 1 dB ripple in the passband compared to the response at DC. The passband is to extend to at least 16 kHz. In addition, the stopband attenuation is to be at least 65 dB, starting at the Nyquist frequency of 22.05 k..
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