Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the collector current base current emitter current supply current None of these collector current base current emitter current supply current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Barrier potential Applied voltage None of these Forward voltage Breakdown voltage Barrier potential Applied voltage None of these Forward voltage Breakdown voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 38.74 V None of these 37.4 V 30.4 V 35.4 V 38.74 V None of these 37.4 V 30.4 V 35.4 V 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 34.4 mA None of these 24.2 mA 68.4 mA 28.4 mA 34.4 mA None of these 24.2 mA 68.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 7.8 mA 208 mA None of these 200 mA 300 mA 7.8 mA 208 mA None of these 200 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Two - a negative terminal and a positive terminal One - a negative terminal Four - two negative and two positive Three - negative, positive and neutral terminals None of these Two - a negative terminal and a positive terminal One - a negative terminal Four - two negative and two positive Three - negative, positive and neutral terminals None of these ANSWER DOWNLOAD EXAMIANS APP
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