Analog Electronics What is true about the breakdown voltage in a zener diode? It decreases when electric current increases. It equals the electric current times the resistance. It is approximately constant. It destroys the diode. It decreases when electric current increases. It equals the electric current times the resistance. It is approximately constant. It destroys the diode. 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 51dB 49dB 98dB 102dB 51dB 49dB 98dB 102dB ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The diffusion capacitance of a forward biased P+N junction diode with a steady electric current I depends on junction area. width of the depleted region. mean life time of the electrons. mean life time of the holes. junction area. width of the depleted region. mean life time of the electrons. mean life time of the holes. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The Q-point in a voltage amplifier is selected in the middle of the active region because it gives distortions less output. it gives better stability. the circuit needs a small. the biasing circuit then need less number of resistors. it gives distortions less output. it gives better stability. the circuit needs a small. the biasing circuit then need less number of resistors. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which material behave like perfect insulators at low temperatures & conductor at higher temperature ? GaAs All the above Si Ge GaAs All the above Si Ge ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The knee voltage (cut in voltage) of silicon diode 0.7 V. 1.0 V. 0.2 V. 0.8 V. 0.7 V. 1.0 V. 0.2 V. 0.8 V. ANSWER DOWNLOAD EXAMIANS APP
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