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? None of these 208 mA 7.8 mA 200 mA 300 mA None of these 208 mA 7.8 mA 200 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles 1 Microfarad is the same as: 1 million farads 1 millionth of a picofarad 1000 millifarads 1 million picofarads None of these 1 million farads 1 millionth of a picofarad 1000 millifarads 1 million picofarads None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductive reactance of a parallel inductor circuit is: equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values None of these equal to the sum of the individual inductance values less than the inductance value of the smallest inductor equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values None of these equal to the sum of the individual inductance values less than the inductance value of the smallest inductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: cuts the capacitive reactance in half multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance has no effect on the capacitive reactance None of these cuts the capacitive reactance in half multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance has no effect on the capacitive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 75 degree None of these 30 degree 180 degree 45 degree 75 degree None of these 30 degree 180 degree 45 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What causes the depletion layer? None of these Recombination Doping Ions Barrier potential None of these Recombination Doping Ions Barrier potential ANSWER DOWNLOAD EXAMIANS APP
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