Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.707 0.575 None of these 10.738 1.5 0.707 0.575 None of these 10.738 1.5 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 30 V 24 V 18 V 12 V None of these 30 V 24 V 18 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? Only those produced by thermal energy many Same number as free electrons less than the free electrons None of these Only those produced by thermal energy many Same number as free electrons less than the free electrons None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of Less than 100 k Ohm More than 100 k Ohm less than 10 Ohm At least 10 Ohm None of these Less than 100 k Ohm More than 100 k Ohm less than 10 Ohm At least 10 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 68.4 mA None of these 34.4 mA 28.4 mA 24.2 mA 68.4 mA None of these 34.4 mA 28.4 mA 24.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA? None of these 0.17 V 20 V 18.8 V 10.17 V None of these 0.17 V 20 V 18.8 V 10.17 V ANSWER DOWNLOAD EXAMIANS APP
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