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Q. What is thermal runaway.
The problem of self heating arises due to dissipation of power at the collector junction. The leakage current ICBO is extremely temperature dependent and increase with the rise of temperature of collector base junction. An increase in ICBO causes an increase in collector current IC considerabely. With the increase in collector current ,collector power dissipation increase which raises the junction temperature which leads to further increase in collector current. The process is cumulative and may lead to the eventual destruction of the transistor . This phenomenon is called thermal runaway.
Write explanatory notes on 8284 Clock generator. The 8284 is an ancillary element to the microprocessors. Without this clock generator, a few additional circuits are needed to
Static Electricity : This is produced when two substances are rubbed together; the substances may be solids, liquids, or gases. Typical sources of static electricity are: i) dr
a. Determine the power flow diagram for a DC generator. b. A shunt wound DC generator delivers 496 A at 440 V to a load. The resistance of the shunt field coil is 110? and that
Q. With the help of the structures explain LCD. A liquid crystal display (LCD) is a thin, flat display device made up of any number of color or monochrome pixels arrayed in fro
RESETIN Input It is an active low signal when it goes low program counter is reset to zero and busses are tri stated it also reset interrupt enable flip flop and instruc
Single Phase Full Wave Controlled rectifier The single phase half wave controlled rectifier produce only one pulse of load current during one cycle of supply voltage
restructuring
Classify the conducting materials. Conducting materials are classified by low resistivity materials and high resistivity materials. Low resistivity materials: The conduct
#quest explain cro..
with a simple circuit,explain the construction of Direct Reading Probe of a cathode ray oscilloscope
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