Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 85 None of these 6 9 81 85 None of these 6 9 81 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? 18 V 30 V 24 V None of these 12 V 18 V 30 V 24 V None of these 12 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A typical light switch in your home is a: None of these knife switch toggle switch momentary push button switch rotary switch None of these knife switch toggle switch momentary push button switch rotary switch ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge An electron that has been freed from its parent atom An electron that costs nothing None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge An electron that has been freed from its parent atom An electron that costs nothing ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? None of these 6 W 122 W 64 W 3 W None of these 6 W 122 W 64 W 3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The concentration of lines of magnetic force None of these The rate of change of the number of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields The concentration of lines of magnetic force None of these The rate of change of the number of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
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