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Q. What do you mean by Oscilloscope?
To measure time-varying signals (voltages and currents), an instrument known as an oscilloscope is employed. It can be used as a practical electronic voltmeter which displays a graph of voltage as a function of time. Such a display allows one not only to read off the voltage at any instant of time, but also to observe the general behavior of the voltage as a function of time. The horizontal and vertical scales of the display are set by the oscilloscope's controls, such as 5 ms per each horizontal division and 50 V per each vertical division. For periodic waveforms, the moving light spot repeatedly graphs the same repetitive shape, and the stationary waveform is seen. For nonperiodic cases, a common way of handling is to cause the oscilloscope tomake only one single graph, representing the voltage over a single short time period. This is known as single-sweep operation. Since the display lasts for only a very short time, it may be photographed for later inspection.
Digital meters are generallymore accurate and can be equipped withmore scales and broader ranges than analog meters. On the other hand, analogmeters are generally less expensive and give an entire range or scale of reading, which often could be very informative. A digital oscilloscope represents the combination of analog and digital technologies. By digital sampling techniques, the oscilloscope trace is digitized and stored in the digital memory included with the digital oscilloscope. Digital oscilloscopes are generallymore costly than analog ones, but their capability in the analysis and processing of signals is vastly superior.
Depletion type MOSFET The channel is of silicon. It can be two type of channel that is an n-type or p-type channel; it is still mostly silicon. After that, we take note that
Suppose that a video signal, having W = 5 MHz, is transmitted via FM with f = 20 MHz. For 1/100 ≤ B/fc ≤ 1/10, determine the bounds on the carrier frequency. Use WFM ∼ = 2(ω + 2W
General configuration of cellular systems?
Explain frequency selective wave analyser with bandwidth
Q. What are the applications of JFET? · FET is used as a buffer in measuring instruments, receivers since it has high input impedance and low output impedance. · FET's are u
Example of binary subtraction of Negative number Case 2. Negative number is more than the positive number ( i e, answer is negative) Example : Subtract 92 10 ( 101
Q. Explain the fixed bias circuit? The Fig refers to the common emitter collector characteristics and the ac and dc load lines.The Fig shows the points Q 1 and Q 2
Q. Consider the electromagnetic plunger shown in Figure. The λ-i relationship for the normal working range is experimentally found to be λ = Ki 2/3 /(x+t), where K is a constant. D
how the clipper circuits are working? explanation of working of clipper circuits
Q. The effective area of a dipole is given by A e =0.13λ 2 . Find the effective area of a half-wave dipole at 3 GHz.
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