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 707 V None of these 700 V 651 V 208 V 707 V None of these 700 V 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be repelled by the south pole of another magnet that would be attracted to the earth's north magnetic pole None of these that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be repelled by the south pole of another magnet that would be attracted to the earth's north magnetic pole 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 positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has no charge None of these An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has no charge None of these An electron has a negative charge and a proton has a positive charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RL circuit? The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage lags the total current by less than 90 The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage lags the total current by less than 90 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The nucleus of the copper atom contains how many protons? 4 29 1 None of these 18 4 29 1 None of these 18 ANSWER DOWNLOAD EXAMIANS APP
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