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? 200 mA 7.8 mA None of these 208 mA 300 mA 200 mA 7.8 mA None of these 208 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The net charge of a neutral copper atom is -1 None of these 4 1 -1 None of these 4 1 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rotating coil of wire in an electric motor is called the: None of these brush loop armature commutator None of these brush loop armature commutator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: is minimum at the resonant frequency None of these always increases as the applied frequency increases is maximum at the resonant frequency always decreases as the applied frequency increases is minimum at the resonant frequency None of these always increases as the applied frequency increases is maximum at the resonant frequency always decreases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 81 6 85 9 None of these 81 6 85 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What causes the depletion layer? Ions Recombination None of these Doping Barrier potential Ions Recombination None of these Doping Barrier potential ANSWER DOWNLOAD EXAMIANS APP
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