Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A plane wall of thickness 2L and thermal conductivity k experiences a uniform volumetric generation rate q. As shown in the sketch for Case I, the surface at x = - L is perfectly insulated, while the other surface is maintained at a uniform, constant temperature To. For Case 2, a very thin dielectric strip is inserted at the midpoint of the wall (x = 0) in order to electrically isolate the two sections, A and B. The thermal resistance of the strip is Rt = 0.0005 m2 · K/W. The parameters associated with the wall are k = 50 W/m · K, L = 20 mm, q = 5 X 106 W/m3 · and To = 50°C
(a) Sketch the temperature distribution for case 1 on T - x coordinates. Describe the key features of this distribution. Identify the location of the maximum temperature in the wall and calculate this temperature.
(b) Sketch the temperature distribution for Case 2 on the same T - x coordinates. Describe the key features of this distribution.
(c) What is the temperature difference between the two walls at x = 0 for Case 2?
(d) What is the location of the maximum temperature in the composite wall of Case 2? Calculate this temperature.
Design a BJT mixer with conversion gain of 10dB for an IF load of 1 kohm and a LO amplitude of 10 mV. The RF frequency should be 707 KHz and the IF frequency should be 455 KHz. Hint: calculate the bias components for a VCC of 9 V
Using a 3-V power supply, design a version of the circuit of fig 6.62 from the book. to provide a dc emitter current of 0.5 mA and to allow a +-1-V signal swing at the collector. The BJT has a nominal B=100. Use standard 5 % resistor values
a) Assume B1 = ax2 - ay10(mT), find B2 and the angle that B2 makes with the interface. b) Assume B2 = ax10 +ay2(mT), find B1 and the angle that B1 makes with the normal to the interface.
Two small spheres having same mass and charge are loacated at the same vertical line at heights h1 and h2(h2>h1). They both are thrown simultaneously with the same velocity V in the same direction along the horizontal.
The latest Lithium-ion batteries and double-layer ultra-capacitors have amazing energy-storage capacities. However, the voltage of a single cell is usually not sufficient for higher power applications, and series connection is then required.
Design a vending machine that accepts a nickel, dime, or a quarter (represented by SW1, SWO = 01,10, or 11, respectively). Thus you can only input one coin at a time. It also does not accept more than 35 cents. In real operation, the coin will be ..
A. What percent had none of these defects. B. What percent had at least one of these defects. C. What percent were free of type X and/ or type Y defects D.What percent had not more than one of these defects
A wire carries a constant current of 218 mA. How many coulombs flow past a given point in the wire in 2 sec
A penstock is used to bring water from behind a dam into a turbine. the effective head is 20 m and the flow rate of water is 50m^3/s. Compute the power of the water exiting the penstock.
Write and test a C program that outputs a waveform that switches from 10.0 kHz with a 50% duty cycle to 25.0 kHz with a 5% duty cycle every 5 seconds. Your code design must be modular - initializations and program operations are to be performed
In a pseudo NMOS inverter design the maximum Vol = 0.1 V. If VDD = 2.5 V, IVtI = 0.4 V, unCox = 4 upCox = 100 uA/V^2 , (W/L)n = 0.375 um/0.25 um, find: 1. The value of (W/L)p 2. Is it a maximum or a minimum value for the design.
When unmodulated the carrier voltage is 75 volts peak. An information (modulating) signal of 15 KHZ with 5 volts peak amplitude causes a frequency deviation of 22.5 KHz. If the load resistor RL= 100 Ohms, determine the following Modulation index
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd