Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: One-half the primary current Same as the primary current No more than 10% less than the primary current None of these Twice the primary current One-half the primary current Same as the primary current No more than 10% less than the primary current None of these Twice the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 310 Ohm 400 Ohm 410 Ohm None of these 550 Ohm 310 Ohm 400 Ohm 410 Ohm None of these 550 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: None of these multiplies the value of inductance by two has no effect on the inductance reduces the value of inductance by one-half multiplies the value of inductance by four None of these multiplies the value of inductance by two has no effect on the inductance reduces the value of inductance by one-half multiplies the value of inductance by four ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? None of these 754 Ohm 120 Ohm 30 Ohm 60 Ohm None of these 754 Ohm 120 Ohm 30 Ohm 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode? 55 A None of these 18.2 mA 55.86 A 16.3 mA 55 A None of these 18.2 mA 55.86 A 16.3 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? None of these 0.707 1.5 0.575 10.738 None of these 0.707 1.5 0.575 10.738 ANSWER DOWNLOAD EXAMIANS APP
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