Electronic Principles Which one of the following statements is true? Power dissipation of a pure capacitor decreases with operating frequency None of these 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 increases with operating frequency Power dissipation of a pure capacitor decreases with operating frequency None of these 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 increases with operating frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.2 A 0.3 A 0.4 A 0.6 A None of these 0.2 A 0.3 A 0.4 A 0.6 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals 0o C -276o C 25o C -273o C None of these 0o C -276o C 25o C -273o C 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 None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit changes direction periodically The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit flows in two directions at the same time None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit changes direction periodically The current in an ac circuit flows in one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 4 None of these 0.25 0.5 180 4 None of these 0.25 0.5 180 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? 200 W None of these 1000 W 100 W 20 W 200 W None of these 1000 W 100 W 20 W ANSWER DOWNLOAD EXAMIANS APP
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