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? 300 mA 208 mA 7.8 mA None of these 200 mA 300 mA 208 mA 7.8 mA None of these 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 100 Ohm 50 Ohm or more 5 Ohm 6 Ohm None of these 100 Ohm 50 Ohm or more 5 Ohm 6 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point None of these up nowhere down off the load line None of these up nowhere down off the load line ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: increasing the voltage applied to the plates increasing the area of the plates increasing the frequency of the applied voltage decreasing the area of the plates None of these increasing the voltage applied to the plates increasing the area of the plates increasing the frequency of the applied voltage decreasing the area of the plates None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet None of these an artificial magnet a paramagnetic alloy a natural magnet a temporary magnet None of these an artificial magnet a paramagnetic alloy a natural magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How may valence electrons does a silicon atom have? None of these 1 2 4 None of these 1 2 4 ANSWER DOWNLOAD EXAMIANS APP
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