Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? 0.955 A 2.02 A 0.02 A 0.41666666666667 None of these 0.955 A 2.02 A 0.02 A 0.41666666666667 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A feiTomagnetic material A paramagnetic material A diamagnetic material All of these None of these A feiTomagnetic material A paramagnetic material A diamagnetic material All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit flows in two directions at the same time The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit flows in one direction at a steady level None of these The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit flows in one direction at a steady level None of these The current in an ac circuit changes direction periodically 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? 20 A None of these 50 A 0.20833333333333 20 A None of these 50 A 0.20833333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? None of these An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge None of these An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: dissipating 1 W of power causing an ac phase shift greater than 90 degree None of these changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second dissipating 1 W of power causing an ac phase shift greater than 90 degree None of these changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second ANSWER DOWNLOAD EXAMIANS APP
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