Electronic Principles Current is None of these An imbalance of electrical charges The number of free electrons in an atom The flow of charged particles through a material The force that causes electrons to flow None of these An imbalance of electrical charges The number of free electrons in an atom The flow of charged particles through a material The force that causes electrons to flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals reduces the level of all frequencies by a significant amount None of these passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals reduces the level of all frequencies by a significant amount None of these passes higher-frequency signals and reduces lower-frequency signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? None of these I = P/E P = E2/R P = IE P = I2R None of these I = P/E P = E2/R P = IE P = I2R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: decreasing the area of the plates increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates None of these decreasing the area of the plates increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet None of these a natural magnet a paramagnetic alloy an artificial magnet a temporary magnet None of these a natural magnet a paramagnetic alloy an artificial magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.5 None of these 4 0.25 180 0.5 None of these 4 0.25 180 ANSWER DOWNLOAD EXAMIANS APP
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