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1. Find the change in currents due to change of voltage by (a) 5mv,(b) -10mv, (c) 15mv using small signal model and exponential modelof diode with n= 1 and biased at 2mA.
2. A step up transformer has the turn ratio of 2:5, find the secondary voltage of transformer ifprimary voltage given is 240 Vac.
The torque produced by an external magnetic field is torque = D[5i,-3j] where D is a positive constant, and for this orientation of the loop the magnetic potential energy U = -mu cross B is negative. The magnitude of the magnetic field is 14D/IA
If the application program creates a message of 150 bytes and each layer (including the fifth and the first) adds a header of 20 bytes to the data unit, what is the efficiency (the ratio of application layer bytes to the number of bytes transmitte..
You know a byte is 8 bits. We call a 4-bit quantity a nibble. If a byte-addressable memory has a 14-bit address, how many nibbles of storage are in this memory
A jet has 4 engines. Each engine gives a FAIL signal which is TRUE if the engine is broken, and is FALSE if the engine is working fine. The plane can fly as long as at most 1 engine is broken.
determine the voltage drop across the 20 Ohm resistor with respect to the 48 V source. I'm having difficulty understanding why the voltage comes out to a negative 12 V, then to a negative 8 V.
A peak power tracker having 5 identical 0.2 m2 PV modules is used to built a PV charger is built from a with an efficiency of 80%. The test ratings of the modules are imp,ref = 2 A, Vmp,ref = 20 V , Tc,NOCT = 42 oC, μP,mp -0.0005 /oC , τα = 0.9.
An electron q=1.602E-19 leaves the cathode ray tube (CRT) and travels in a uniform electrostatic field toward the anode, which is at a potential Va=500V with respect to the cathode. What is the work W done by the electostatic field involved in mov..
Determine the panel orientation you would choose to obtain maximum energy: (a) Over the year (b) In the summer (c) In the winter Discuss your choice of slope angles if the location is at 75°N.
The river estuary is tidal causing the surface level of the water to rise and fall. At certain times of day, reflections from the water surface cause deep fading of the received signal.
Three amplifiers with power gains of 15, 22, and 7 are cascaded. The input power is 120 µW. What is the output power of the final amplifier stage
Consider an electron in a cubic crystal of a semiconductor material. Such an electron is free to move throughout the cubic volume of the crystal, but cannot escape outside the cube. It is trapped in a three-dimensional infinite potential well.
The secondary's of a step-down, three-phase transformer bank are delta connected and supply a three-phase 240v moter that draws 12A through each line. What is the current in each transformer winding If the turn ratio of the transformers
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