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 0.41666666666667 None of these 0.02 A 0.955 A 2.02 A 0.41666666666667 None of these 0.02 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for resistance in a parallel circuit? The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance in a parallel circuit is equal to the average value of the individual resistances None of these The total resistance of a parallel circuit is always less than the value of the smallest resistance The total resistance of a parallel circuit is equal to the total voltage The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance in a parallel circuit is equal to the average value of the individual resistances None of these The total resistance of a parallel circuit is always less than the value of the smallest resistance The total resistance of a parallel circuit is equal to the total voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The force that maintains lines of force None of these The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The force that maintains lines of force None of these The opposition to a build-up of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? None of these 0.05 mA 3.2 mA 13 mA 3.75 mA None of these 0.05 mA 3.2 mA 13 mA 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 707 V 700 V 208 V None of these 651 V 707 V 700 V 208 V None of these 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? Less than 1 Ohm 628 Ohm 444 Ohm 100 Ohm None of these Less than 1 Ohm 628 Ohm 444 Ohm 100 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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