Electronic Principles The peak value of a sine waveform is: None of these the amplitude at 90% of the maximum value the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 1.41 times the maximum value None of these the amplitude at 90% of the maximum value the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 1.41 times the maximum value 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? 30 V 12 V 18 V None of these 24 V 30 V 12 V 18 V None of these 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 1750 mA 175 mA None of these 1.75 mA 17.5 mA 1750 mA 175 mA None of these 1.75 mA 17.5 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? The total voltage lags the total current by less than 90 The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage 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 None of these The total voltage lags the total current by less than 90 The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 2 3 43922 None of these 43891 2 3 43922 None of these 43891 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the None of these Barrier potential Applied voltage Breakdown voltage Forward voltage None of these Barrier potential Applied voltage Breakdown voltage Forward voltage ANSWER DOWNLOAD EXAMIANS APP
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