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? 208 V 700 V None of these 707 V 651 V 208 V 700 V None of these 707 V 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always increases as the applied frequency increases always decreases as the applied frequency increases None of these is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always increases as the applied frequency increases always decreases as the applied frequency increases None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Lost an electron Gained an electron None of these Lost a proton Gained a proton Lost an electron Gained an electron None of these Lost a proton Gained a proton ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 2 m V per degree Celsius 0.3V 1 V None of these 0.7V 2 m V per degree Celsius 0.3V 1 V None of these 0.7V 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? 300 mA 200 mA None of these 7.8 mA 208 mA 300 mA 200 mA None of these 7.8 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 kV is: 1000 mV 100 mV 1.00 V 1000 V None of these 1000 mV 100 mV 1.00 V 1000 V None of these ANSWER DOWNLOAD EXAMIANS APP
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