Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 208 V 707 V 700 V None of these 651 V 208 V 707 V 700 V None of these 651 V 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? None of these 50 A 20 A 0.20833333333333 None of these 50 A 20 A 0.20833333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit flows in one direction, but changes value periodically None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time The current in an ac circuit flows in one direction, but changes value periodically None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that costs nothing An electron that has twice the amount of charge of a normal electron None of these An electron that has no electrical charge An electron that has been freed from its parent atom An electron that costs nothing An electron that has twice the amount of charge of a normal electron None of these An electron that has no electrical charge An electron that has been freed from its parent atom ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Norton current is sometimes called the Open-load current Thevenin voltage Thevenin current Shorted-load current None of these Open-load current Thevenin voltage Thevenin current Shorted-load current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitive reactance of a parallel capacitor circuit is: equal to the sum of the individual capacitive-reactance values None of these equal to the sum of the individual capacitance values less than the capacitance value of the smallest capacitor equal to the source voltage divided by total current equal to the sum of the individual capacitive-reactance values None of these equal to the sum of the individual capacitance values less than the capacitance value of the smallest capacitor equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
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