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An amplifier with a voltage gain of +40 dB, an input resistance of 10 k ohms and an output resistance of 1 kohm is used to drive a 1 k ohms load. what is the value of Avo? Find the value of the power gain in decibels.
An oscilloscope shows the period of an ac waveform to be 3.5 horizontal divisions when the timebase control is set to "10 ms/Div". What is the measured period and frequency of the waveform
In a vessel with a volume 3 m3 you put 0.03 m3 of liquid water and 2.97 m3 of water vapor so that the pressure is 101.33 kPa. Then you heat the system until all liquid water just evaporates. What is the pressure and temperature in the vessel at th..
mutual shifted by 90 degree currents through each of both windings of the single phase A motor are (5.5+1.7) A but RMS voltage of the supply is 220 V.How big will be torque on shaft of the motor is efficiency factor is 0.7.
A 60 Hz, three-phase, transposed transmission line has the following parameters: Z = 13.114+ j52.952, Y = j0.311/1000. The sending-end line-to-line voltage is 161 kV. The total receiving-end load is represented by ZL =143 with an angle
1 kW heating element of a 230 V, 50 Hz electric stove is to be controlled by a triac circuit. The gate circuit of the triac uses a 0.2 mF capacitor and a diac with a break over voltage of 50 V. Calculate the adjustable resistance value to provide ..
An optical lithographic system has an exposure power of 0.3 mW/cm2. The required exposure energy for a positive photoresist is 140 mJ/cm2 and for a negative photoresist is 9 mJ/cm2. Assuming negligible times for loading and unloading wafers
if the equation for a mesh current is done and the current comes out negative, with the assumed clockwise direction. does that mean that the current is actually going in the opposite direction
Suppose the information portion of a packet contains 10 bytes consisting of the 8- bit unsigned binary ASCII representation of string "Link Layer".
When a HIGH is on the output of the decoding circuit below, what is the binary code appearing on the inputs?
For a single frequency sine wave modulating signal of 3 KHz with a carrier frequency of 36 MHz, what is the spacing between sideband
TDMA has 416 frequencies in one of the cellular license bands. If a cellular operator designs a network with a 5/15 reuse pattern, how many frequencies per cell (sector) can be supported? ( ignore control channels)
Three single-phase transformers rated at 15kVA, 480V/120V,60Hz are connected in delta to function as autotransformers on a 600V,3-phase line. The H1,H2,X1,X2 polarity marks appear on the metal housing.
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