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Find the amount of electrical energy exdpended in raising the temperature of 45 litres of water by 75°C. To what height could a weight of 5 tonnes be raised with the expenditure of the same ener
A 22.5 ohm resistor is connected across a 15 V battery. What value resistor should be used to generate the same amount of heat if the power source is 283 Vp-p at 60 Hz
A time -varying capacitor is characterized by the charge-voltage equation. That is, the capacitance is not a constant but a function of time. Given that i(t) =dq(t)/dt, find the voltage-current rela
Explain charge sharing in dynamic circuits. For a 3-input dynamic NAND gate, discuss charge sharing, and explain the design requirements under which the gate operates correctly in the presence of ch
Using bit-slicing technique, design a circuit that calculates the expression 2*a-b. Operands a, and b are each 4 bits long. The result is represented using 5 bits. Show the transistor-level design u
Assume that a stuck-at-1 fault occurs at the output of the circuit ((A+B)(B+C))'. Determine the test pattern that detects the fault. Repeat for a stuck-at-0 fault at the output.
A sequential circuit has one input X, and two outputs Z1 and Z2. The outputs represent the number of 0's that have3 appeared in the last three inputs. For example, X:0110111100001011 Z1:000000000111
a coaxial cable can carry signals in the range 50mhz to 450mhz. The bandwidth of cable is divided into a numbe of sub-channels each occupying with the guard band, 40mhz of bandwidth. In each channel
A satellite is 30,000 km from the Earths surface, receives signals at 14 GHz transmitted from the earth with an average power of 50 W, with an antenna gain of 55 dB in the direction of the satellite
An optical fiber is to be used to capture the light signal in a particular experiment. If the core of the fiber has an index of 1.46, and the cladding index is 1.457, what is the maximum angle of in
A FM radio station transmits signals with circular polarization at 100 MHz center frequency. A vertical quaterwave monopole antenna is used in a radio set to receive this signal. If the average powe
A half-wave dipole antenna in a PCS handset at 1.9 GHz, requires a signal strength of 0.01 micro volts per centimeter to operate with acceptable performance. The transmit antenna is assumed to be a
above the azimuth at 900 mHz. Suppose 1 W is supplied to the dipole antenna, neglecting losses
Given the following system of linear equations: x1 + 2x2 + x3 = 4, 12x1 + 16x3 = 28, 8x1 - x2 + 5x3 = 12(a) Write it in the form of Ax = b (b) Find all solutions to the system using Gauss elimination
A circuit contains a known resistance of 2.4 kO, and an unknown inductance. a) When a 12-V battery is connected, what is the current in the circuit a long time after the switch is closed
A four-bit barrel shifter is a combinational circuit with four data inputs, two control inputs, and two data outputs. It allows the data inputs to be shifted onto the outputs by 0, 1, 2, or 3 bit po
Voltage across a .1 micro farad capacitor is : v(t)=25v when t is less than or equal to 0; and v(t)=(Bte^-1000t) + (C(e^-1000)v) when t is greater than or equal to 0 Initial current is 100mA A) what
Two Bit Analog to Digital Converter - MATLAB Let x (t) = 0.8 cos(2*pi*t) + 0.15, 0≤ t ≤ 1, and zero otherwise, be the input to a two bit ADC converter. a.) For a sampling period Ts = 0.025 sec;
An inverting op amp has Ri = 20 k Ohms, Rf = 500 k Ohms, and Req (resistor between + input terminal and ground) = 19 k Ohms. How much does the offset voltage increase if Req is replaced by a short c
A. What is the reflection coefficient of the load B. If a quarter-wave transformer is inserted between the transmission line and the load, what shall be the characteristic impedance Z0 of this quar
A transmission line with characteristic impedance Z0= 60 ohms is connected to a load impedance ZL= 40-j20 ohms. The wavelength is 8 cm. A. Calculate the load reflection coefficient. B. Calculate the
Assume that at this point when Av*β = 1, phase shift due to the amplifier is 120 degrees. A 0.001 micro farad capacitor is added in parallel with Rf in the feedback circuit. What is the new pha
describe with a numerical example the fundamental reason as to why live streaming video require a heavy usage of bandwidth as compared to live streaming audio. give a numerical example.
A 220 V shunt motor has armature and field resistance of 0.2-ohm and 220-ohm respectively. The motor is driving a constant load torque and running at 1000 rpm drawing 10 A current from the supply.
(Combinational Integer Multiplier) Draw the schematic for a 3-bit com- binational multiplier designed using partial product accumulation. (A,B are 3-bit inputs and S is a 6-bit output.) Use half/ful