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Q. Explain Light-emitting diode?
This is a reliable, rugged, and inexpensive semiconductor display device requiring about 10 mA of current flow for full illumination. An LED is shown in Figure. It is available in red, yellow, or green color, in common sizes of T-1 and T-1¾, where the number after the T denotes the diameter of the lamp in units of eighths of an inch. Two-color LEDs are also available.
Q. Illustrates typical thermal noise waveform? In general, any physical resistor or lossy device can be modeled by a noise source in series with a noiseless resistor, as shown
Power Control A chopper converts fixed de input voltage to a controllable dc output voltage. It is the single stage dc to dc conversion device. It is a high speed on/ of
Q. Counting to moduli other than 2 n is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four
Discuss the requirement for automatic gain control in AM receiver and automatic frequency control in FM. How are these 'control' voltage formed and used?
Design a logic circuit when to provide an output when any two or three of four switches are closed.
the depletion layer in the pn junction is caused by
There are zillions of things in electronics known as encoders. You can look up LCDs and NAND gates as well and this is actual basics.
Classify the magnetic materials into diamagnetic, paramagnetic, ferromagnetic and ferrimagnetic materials. Also give examples of each. Classification of magnetic materials:-
Questions: A magnetic core with a primary winding with 40 turns and a secondary winding with 80 turns has a leakage path dominated by an air gap as shown in the figure. The iro
Decimal to binary Conversion To convert a decimal number to binary any one of the followings two methods can be used. Methods1 : This is very common methods of co
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