Electronic Principles Holes act like: None of these Atoms Negative charges Positive charges Crystals None of these Atoms Negative charges Positive charges Crystals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of Kirchhoffs current law? None of these The algebraic sum of currents in a loop is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents entering and leaving a point is equal to zero None of these The algebraic sum of currents in a loop is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents entering and leaving a point is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? None of these 2.02 A 0.02 A 0.955 A 0.41666666666667 None of these 2.02 A 0.02 A 0.955 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The net charge of a neutral copper atom is -1 4 None of these 1 -1 4 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
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