Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 707 V 651 V 208 V 700 V None of these 707 V 651 V 208 V 700 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 122 W 6 W 3 W 64 W None of these 122 W 6 W 3 W 64 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has no charge An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has no charge An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has a negative charge None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: less than the value of the smallest inductor None of these equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values less than the value of the smallest inductor None of these equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values 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? 0.2 A 0.6 A None of these 0.3 A 0.4 A 0.2 A 0.6 A None of these 0.3 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
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