Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of At least 10 Ohm More than 100 k Ohm less than 10 Ohm Less than 100 k Ohm None of these At least 10 Ohm More than 100 k Ohm less than 10 Ohm Less than 100 k Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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: Twice the primary current One-half the primary current None of these No more than 10% less than the primary current Same as the primary current Twice the primary current One-half the primary current None of these No more than 10% less than the primary current Same as the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? I = P/E P = E2/R R = E2/P P = PR None of these I = P/E P = E2/R R = E2/P P = PR None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a poor conductor of electrostatic fields a good conductor a good insulator None of these a good conductor of magnetic fields a poor conductor of electrostatic fields a good conductor a good insulator None of these a good conductor of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the impedance of a series RC circuit? The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is less than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is less than the sum of the resistance and capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these ANSWER DOWNLOAD EXAMIANS APP
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