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Q. Explain Cathode-ray tube?
While the CRT display is one of the oldest, it still remains one of the most popular display technologies. The raster-scanned display devices work similarly to commercial television sets, whereas graphics display devices use different technologies to achieve extremely high resolution. A CRT video signal has only two levels, with a 0 level causing a dark spot and a 1 level causing a bright spot. The appropriate combination of 1s and 0s displays data on a CRT screen, with each character displayed by dot-matrix displays, typically in 5 × 7or7 × 9 display fonts.
Is there an opto-coupler that has a blocking voltage, VRRM, of greater than 800 volts? Perhaps, 1200 or 1600 volts? The manufacturer?
Q. What is DTMF dialling? DTMF dialling 1. Uses push buttons 2. Uses 8 different frequencies in pairs. 3. 16 different characters can be represented. 4. The f
Thermal noise This is the most significant noise in an ampli?er. It is produced by random movements of electrons in the resistors. This is caused by the ?uctuations in the volt
Determine self inductance of coil: A flux of 0.5 m Wb is generated by coil A of 600 turns wound on a ring with a current of 2 A in it. Determine (a) self inductance of coil A,
Explain cache structure in Pentium. Cache structure in Pentium: The cache in the Pentium has been changed by the one determined in the 80486 microprocessor. The Pentium has t
#I want to get lecture notes on Electronic device.and circuits .
Q. Explain Global Positioning Systems? Modern communication systems abound in practice: cellular phones, computer networks, television satellites, and optical links for telepho
Feedback amplifiers are of great importance in electronic circuits. The block diagram of a class of feedback amplifier is shown in Figure. Determine the transfer function C/R for t
Q. A single-phase, 3-kVA, 220:110-V, 60-Hz transformer has a high-voltage winding resistance of 0.3 , a low-voltage winding resistance of 0.06 , a leakage reactance of 0.8 on i
Managing Change: 1 The prominent actors included in the change procedure in an organisation are Change Makers, Change Agents, Change Leaders and they play a strategic role in
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