Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 85 81 6 None of these 9 85 81 6 None of these 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 45 degree 180 degree None of these 75 degree 30 degree 45 degree 180 degree None of these 75 degree 30 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? 0.041666666666667 0.93 W None of these 0.93 V 9.3 W 0.041666666666667 0.93 W None of these 0.93 V 9.3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a series RLC circuit is operating at its resonant frequency: the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance None of these inductive reactance is equal to the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance None of these inductive reactance is equal to the capacitive reactance 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? 7.8 mA 300 mA 208 mA None of these 200 mA 7.8 mA 300 mA 208 mA None of these 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a: None of these parallel RC circuit purely resistive circuit parallel RL circuit parallel RLC circuit operated above its resonant frequency None of these parallel RC circuit purely resistive circuit parallel RL circuit parallel RLC circuit operated above its resonant frequency ANSWER DOWNLOAD EXAMIANS APP
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