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why there is no earthing in television, rather it is a very complicated and its plug is always 2 pin. On the other hand mobile charger has got 3 pin plug and therefore earthing is done in it while charging of mobile. so in case of t.v., vcd player, tape etc there is no earthing while mobile charger does have earthing.what is the reason behind it, and why earthing is not done in t.v. ?
how much work is done(by a battery,generator,or some other source of potenial difference) in moving Avogadro's number of electrons from an initial point where the electric potenial is 9.00V to a point where the electric potenial is -5.00V
A transmission line having a 50 ohm characteristic impedance is to drive a load of 200 ohms. 1)What is the reflection coefficient if the line is connected directly to the load 2) What is the standing wave ratio on the main line under the conditions o..
A continuos-time system is given as a differential equation: y''(t)+2y'(t)+3y(t)=x'(t)+x(t-2) a. Compute the Transfer function H(s) of the system. b. Compute the Impulse Response h(t). c. Compute the Step Response g(t).
The series combination of a 4=mu F and a 3mu F capacitor is in series with the parallel combination of a 2 mu F, a 1 ? mu F, and a C - mu F capacitor, (a) What is the maximum possible value for the equivalent capacitance of the five capacitors
What does a small delay spread indicate about the characteristics of a fading channel. If delay spread is 1microsecond, will two different frequencies that are 5 MHz apartexperience correlated fading.
A 6th order Chebyshev low pass filter has a 0.5dB ripple in the pass-band and has a cutoff frequency of 5Khz, determine the attenuation (dB) of the signal at: 1. 4Khz 2. 40Khz 3. 40Mhz
A gallium-arsenide crystal at 200K containing only donor impurities was found to have hole concentration to be one fifth that of the electron concentration. Determine the actual carrier concentrations and the doping concentration of the crystal.
A video signal contains light variations that change at a frequency as high as 3.5 MHz. What is the minimum sampling frequency for A/D conversion?
A 10kVA, 200/400V 50Hz single-phase transformer gave the following test results. O/C test: 200V, 1.3A, 120W, on l.v. side. S/C test: 22V, 30A, 200W on h.v. side. (a) Calculate the magnetizing current and the component corresponding to core loss at ..
(a) Generate a row vector x of length 40 containing the integers 0, 1, 2, ...39. (b) Generate a row vector y containing 40 values, each of whom is a random real number in the interval [4:5; 7:5]. (c) Produce a new vector v equal to the sum of the two..
The voltage drops across three resistors in series are measured to be 10.0V, 15.0V, and 25.0V. If the largest resistor is 47.0ohm, what is the value of the smallest resistor
Consider an object that has homogeneously textured surface with maximum spatial frequency of (fx,fy)=(3,4) cycle/ meter and that is moving at a constant speed of (Vx,Vy)=(1,1) meter/second.
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