Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Decreases Stays the same None of these Increases 0oC Decreases Stays the same None of these Increases 0oC ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these reduces the level of all frequencies by a significant amount passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these reduces the level of all frequencies by a significant amount ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA 0.05 mA None of these 13 mA 3.2 mA 3.75 mA 0.05 mA None of these 13 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: None of these a natural magnet a temporary magnet a paramagnetic alloy an artificial magnet None of these a natural magnet a temporary magnet a paramagnetic alloy an artificial magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? None of these 12 V 30 V 24 V 18 V None of these 12 V 30 V 24 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Norton current, you have to Short the voltage source Short the load resistor None of these Open the voltage source Open the load resistor Short the voltage source Short the load resistor None of these Open the voltage source Open the load resistor ANSWER DOWNLOAD EXAMIANS APP
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