Electronic Principles Most AC power is obtained from: oscillators generators batteries None of these lightning oscillators generators batteries None of these lightning ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 300 µA 0.25 µA 350 µA 250 µA None of these 300 µA 0.25 µA 350 µA 250 µA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? Power dissipation of a pure capacitor increases with operating frequency All of these None 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 Power dissipation of a pure capacitor increases with operating frequency All of these None 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 A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 18 V 30 V None of these 12 V 24 V 18 V 30 V None of these 12 V 24 V ANSWER DOWNLOAD EXAMIANS APP
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 No more than 10% less than the primary current One-half the primary current Same as the primary current None of these Twice the primary current No more than 10% less than the primary current One-half the primary current Same as the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The barrier potential accross each depletion layer is 0.8 V 0.7 V 20 V None of these 0.8 V 0.7 V 20 V None of these ANSWER DOWNLOAD EXAMIANS APP
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