Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 180 None of these 0.25 0.5 4 180 None of these 0.25 0.5 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: less than the value of the smallest inductor equal to the source voltage divided by total current equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values None of these less than the value of the smallest inductor equal to the source voltage divided by total current equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 20 A None of these 50 A 0.20833333333333 20 A None of these 50 A 0.20833333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 0.7V None of these 0.3V 2 m V per degree Celsius 1 V 0.7V None of these 0.3V 2 m V per degree Celsius 1 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: solar cell piezoelectric devices chemical cell None of these thermocouple solar cell piezoelectric devices chemical cell None of these thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles As the temperature increases, the current gain contant decreases increases can be any of the above None of these contant decreases increases can be any of the above None of these ANSWER DOWNLOAD EXAMIANS APP
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