Analog Electronics Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is 51dB 102dB 98dB 49dB 51dB 102dB 98dB 49dB ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics What is the most important fact about the collector current? It approximately equals the emitter current. It is small. It equals the base current divided by the current gain. It is measured in milliampere. It approximately equals the emitter current. It is small. It equals the base current divided by the current gain. It is measured in milliampere. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics N-type extrinsic semiconductor is obtained by adding trivalent impurity pentavalent impurity tetravalent impurity All of these trivalent impurity pentavalent impurity tetravalent impurity All of these ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Most of the electrons in the base of an NPN transistor flow into the collector. into the emitter. into the base supply. out of the base lead. into the collector. into the emitter. into the base supply. out of the base lead. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which of the following amplifier circuit using junction transistor has the best gain? Common collector Common base All have the same gain Common emitter Common collector Common base All have the same gain Common emitter ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Acceptor type impurities All of these are used to make P-type semiconductor Create excess holes have three valance electrons All of these are used to make P-type semiconductor Create excess holes have three valance electrons ANSWER DOWNLOAD EXAMIANS APP
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