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? 707 V 700 V 208 V 651 V None of these 707 V 700 V 208 V 651 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RC circuit? The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these The total current. is greater than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these The total current. is greater than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole None of these that would be repelled by the north pole of another magnet that has its molecules arranged in a random pattern that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole None of these that would be repelled by the north pole of another magnet that has its molecules arranged in a random pattern ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 754 Ohm 30 Ohm None of these 120 Ohm 60 Ohm 754 Ohm 30 Ohm None of these 120 Ohm 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? 26.6 degree 180 degree 0 degree None of these 90 degree 26.6 degree 180 degree 0 degree None of these 90 degree ANSWER DOWNLOAD EXAMIANS APP
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