Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Magnetomotive force Flux density Number of lines of force Reluctance None of these Magnetomotive force Flux density Number of lines of force Reluctance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 60 Ohm 100 Ohm or more 10 Ohm None of these 50 Ohm 60 Ohm 100 Ohm or more 10 Ohm None of these 50 Ohm 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? 200 mA 7.8 mA 208 mA None of these 300 mA 200 mA 7.8 mA 208 mA None of these 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 16 V 7.5 V 3 V None of these 8 V 16 V 7.5 V 3 V None of these 8 V 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? None of these 24 V 30 V 18 V 12 V None of these 24 V 30 V 18 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of Less than 10 Ohm More than 100 k Ohm None of these At least 10 Ohm Less than 100 k Ohm Less than 10 Ohm More than 100 k Ohm None of these At least 10 Ohm Less than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
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