Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the emitter current base current supply current collector current None of these emitter current base current supply current collector current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: None of these ac current leads the voltage by 90 degree ac current is converted to dc voltage ac current and voltage are exactly in phase ac current lags the voltage by 90 degree None of these ac current leads the voltage by 90 degree ac current is converted to dc voltage ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 28.4 mA 24.2 mA 68.4 mA 34.4 mA None of these 28.4 mA 24.2 mA 68.4 mA 34.4 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: None of these the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the number of cycles completed in one second None of these the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the number of cycles completed in one second ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? 90 degree 0 degree 26.6 degree None of these 180 degree 90 degree 0 degree 26.6 degree None of these 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive One - a negative terminal None of these Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals Four - two negative and two positive One - a negative terminal None of these Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals ANSWER DOWNLOAD EXAMIANS APP
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