Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the supply current base current emitter current collector current None of these supply current base current emitter current collector current None of these 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? 34.4 mA 68.4 mA None of these 28.4 mA 24.2 mA 34.4 mA 68.4 mA None of these 28.4 mA 24.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 310 Ohm 410 Ohm 550 Ohm None of these 400 Ohm 310 Ohm 410 Ohm 550 Ohm None of these 400 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? None of these Same number as free electrons less than the free electrons many Only those produced by thermal energy None of these Same number as free electrons less than the free electrons many Only those produced by thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is greater than the sum of the voltages across the resistance and capacitance None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is greater than the sum of the voltages across the resistance and capacitance None of these The voltage always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Most AC power is obtained from: oscillators batteries lightning None of these generators oscillators batteries lightning None of these generators ANSWER DOWNLOAD EXAMIANS APP
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