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? 208 mA 300 mA 7.8 mA 200 mA None of these 208 mA 300 mA 7.8 mA 200 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always increases as the applied frequency increases is minimum at the resonant frequency always decreases as the applied frequency increases None of these is maximum at the resonant frequency always increases as the applied frequency increases is minimum at the resonant frequency always decreases as the applied frequency increases None of these is maximum at the resonant frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: the maximum positive or negative value None of these the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value the maximum positive or negative value None of these the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a parallel circuit? None of these The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch The total voltage in a parallel circuit is always less than the value of the smallest voltage The total voltage in a parallel circuit is equal to the average value of the individual voltages None of these The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch The total voltage in a parallel circuit is always less than the value of the smallest voltage The total voltage in a parallel circuit is equal to the average value of the individual voltages ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 kV is: 1000 mV 1.00 V 1000 V None of these 100 mV 1000 mV 1.00 V 1000 V None of these 100 mV ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? 0.02 A 0.955 A 2.02 A 0.41666666666667 None of these 0.02 A 0.955 A 2.02 A 0.41666666666667 None of these ANSWER DOWNLOAD EXAMIANS APP
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