Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current No more than 10% less than the primary current Twice the primary current None of these One-half the primary current Same as the primary current No more than 10% less than the primary current Twice the primary current None of these One-half the primary current 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 has its molecules arranged in a random pattern 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 would be attracted to the earths north magnetic pole that has its molecules arranged in a random pattern 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: frequency on the vertical axis and amplitude on the horizontal axis None of these 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 frequency on the vertical axis and amplitude on the horizontal axis None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 0.20833333333333 20 A 50 A None of these 0.20833333333333 20 A 50 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? P = IE I = P/E None of these P = I2R P = E2/R P = IE I = P/E None of these P = I2R P = E2/R 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 None of these The current always has the same amplitude and phase for every part of the circuit The total current. is greater 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 The total current is less than the sum of the currents for the resistance and capacitance None of these The current always has the same amplitude and phase for every part of the circuit The total current. is greater 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 ANSWER DOWNLOAD EXAMIANS APP
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