Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 3 None of these 2 43891 43922 3 None of these 2 43891 43922 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: None of these doubles the amount of inductive reactance has no effect on the inductive reactance cuts the inductive reactance in half multiplies the inductive reactance by 6.28 None of these doubles the amount of inductive reactance has no effect on the inductive reactance cuts the inductive reactance in half multiplies the inductive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between a conductor and an insulator? An insulator allows current to flow much easier than a conductor does A conductor allows current to flow much easier than an insulator does An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all The difference between conductors and insulators depends on how they are used None of these An insulator allows current to flow much easier than a conductor does A conductor allows current to flow much easier than an insulator does An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all The difference between conductors and insulators depends on how they are used None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? None of these 200 mA 208 mA 7.8 mA 300 mA None of these 200 mA 208 mA 7.8 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like a conductor a piece of copper wire None of these a battery an insulator a conductor a piece of copper wire None of these a battery an insulator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? None of these The total voltage is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 None of these The total voltage is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS