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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.
Compact Disc - Read Only Memory. A CD-ROM is any compact disc which having computer data. These discs can store enormous amounts of data (up to 640 megabytes). If there is a large
Calculate the cross-sectional area, in mm 2 , of a piece of aluminium wire 100 m long and having a resistance of 2Ω. Take the resistivity of aluminium as 0.03 x 10-6 Ωm.
what is clamper circuit
Q. Define and explain the critical field circuit resistance and critical speed of a DC shunt generator. Ans. The OCC and R - line for a DC shunt generator. As, R f is
write the note on gunn diode and ats applications
HLT Halt Instruction The microprocessor halts the execution of the program and enters into the wait state the address and data bus are placed in the high impedance st
what is power system Analysis
1. Work out the voltage for the following arrangement of 1.5V cells : (to achieve a pass grade, solve problems with cells in series, parallel and series-parallel) 2.
Q. What is Induction machines? We shall first consider polyphase induction motors and then single-phase induction motors. The polyphase induction motors used in industrial appl
To find out the largest of ten 8 bit numbers. Method: The numbers are stored in consecutive memory locations. The counter register is initialized with 0A and the address pointer po
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