Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Twice the primary current None of these Same as the primary current No more than 10% less than the primary current One-half the primary current Twice the primary current None of these Same as the primary current No more than 10% less than the primary current One-half the primary current 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 7.8 mA 208 mA 300 mA None of these 200 mA 7.8 mA 208 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which is the most widely used semiconductor? Copper All of these None of these Silicon Germanium Copper All of these None of these Silicon Germanium ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? None of these Power dissipation of a pure capacitor increases with operating frequency All of these There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency Power dissipation of a pure capacitor decreases with operating frequency None of these Power dissipation of a pure capacitor increases with operating frequency All of these There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency Power dissipation of a pure capacitor decreases with operating frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RL circuit? The total voltage lags the total current by less than 90 The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than 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 None of these The total voltage lags the total current by less than 90 The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? None of these 1.5 0.575 10.738 0.707 None of these 1.5 0.575 10.738 0.707 ANSWER DOWNLOAD EXAMIANS APP
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