Electronic Principles What is one important thing transistors do? Emit light None of these Regulate voltage Rectify line voltage Amplify weak signals Emit light None of these Regulate voltage Rectify line voltage Amplify weak signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the emitter current None of these base current collector current supply current emitter current None of these base current collector current supply current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a series circuit? The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage in a series circuit is always less than the value of the smallest voltage None of these The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage in a series circuit is always less than the value of the smallest voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RL circuit? The total voltage is less than the sum of the voltages across the resistance and inductance The total voltages is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit The total voltage lags the total current by less than 90 None of these The total voltage is less than the sum of the voltages across the resistance and inductance The total voltages is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit The total voltage lags the total current by less than 90 None of these 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? 26.6 degree None of these 0 degree 90 degree 180 degree 26.6 degree None of these 0 degree 90 degree 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.2 A 0.6 A 0.3 A 0.4 A None of these 0.2 A 0.6 A 0.3 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
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