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? 208 mA 300 mA None of these 200 mA 7.8 mA 208 mA 300 mA None of these 200 mA 7.8 mA 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? 20 W 100 W 1000 W 200 W None of these 20 W 100 W 1000 W 200 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals -276o C 25o C 0o C None of these -273o C -276o C 25o C 0o C None of these -273o C ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Clockwise Into this page Counterclockwise None of these Out of this page Clockwise Into this page Counterclockwise None of these Out of this page ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: doubles the amount of total current None of these cuts the total current by one-half thrice the amount of total current has no effect on the total circuit current doubles the amount of total current None of these cuts the total current by one-half thrice the amount of total current has no effect on the total circuit current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the collector current increases, what does the current gain do? stays the same decreases any of the above None of these increases stays the same decreases any of the above None of these increases ANSWER DOWNLOAD EXAMIANS APP
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