Analog Electronics For a transistor amplifier with self- biasing network, the following components are used: R1 = 4 KΩ, R2 = 4 KΩ and RE = 1 KΩ, the approximate value of stability factor will be 2. 3. 1.5. 4. 2. 3. 1.5. 4. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The arrowhead on the transistor symbol points in the direction of majority carrier flow in the emitter region. conventional electric current flow in the emitter region. minority carrier flow in the emitter region. electron flow in the emitter region. majority carrier flow in the emitter region. conventional electric current flow in the emitter region. minority carrier flow in the emitter region. electron flow in the emitter region. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics If the current gain is 100 and the collector current is 10 mA, the base current is 10 µA. 100 µA. 1 A. 10 A. 10 µA. 100 µA. 1 A. 10 A. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Voltage Series (feedback also called series-shunt feedback) results in Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Increase in both input & output impedances Decrease in input impedance & increase in output impedance Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Increase in both input & output impedances Decrease in input impedance & increase in output impedance ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is f = 1 / (2π√RC) f = 1 / (2π√R(C1 + C2)) f = 1 / (2π RC√6) None of these f = 1 / (2π√RC) f = 1 / (2π√R(C1 + C2)) f = 1 / (2π RC√6) None of these ANSWER DOWNLOAD EXAMIANS APP
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 49dB 51dB 102dB 98dB 49dB 51dB 102dB 98dB ANSWER DOWNLOAD EXAMIANS APP
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