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? 700 V 208 V 707 V 651 V None of these 700 V 208 V 707 V 651 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a direct statement of Ohm's law? The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of voltages in a loop is equal to zero None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of voltages in a loop is equal to zero None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: amplitude on the vertical axis and frequency on the horizontal axis None of these frequency on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and frequency on the horizontal axis None of these frequency on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point off the load line nowhere up None of these down off the load line nowhere up None of these down ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.575 None of these 0.707 10.738 1.5 0.575 None of these 0.707 10.738 1.5 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle equal to 0.707 times the peak amplitude the time required for the voltage to rise from 10% to 90% of the peak amplitude None of these the number of cycles completed in one second the time required to complete one full cycle equal to 0.707 times the peak amplitude the time required for the voltage to rise from 10% to 90% of the peak amplitude None of these the number of cycles completed in one second ANSWER DOWNLOAD EXAMIANS APP
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