Electronic Principles A device that converts chemical energy to electrical energy is called a: thermocouple electric device chemical cell None of these solar cell thermocouple electric device chemical cell None of these solar cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that costs nothing An electron that has been freed from its parent atom 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 costs nothing An electron that has been freed from its parent atom None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge 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? 200 mA None of these 7.8 mA 300 mA 208 mA 200 mA None of these 7.8 mA 300 mA 208 mA 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 opposition to a build-up of magnetic fields The force that maintains lines of force The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force None of these The opposition to a build-up of magnetic fields The force that maintains lines of force The rate of change of the number of lines of magnetic force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage? None of these 16 V 8 V 3 V 7.5 V None of these 16 V 8 V 3 V 7.5 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How many protons does the nucleus of a silicon atom contain? 29 48 14 4 None of these 29 48 14 4 None of these ANSWER DOWNLOAD EXAMIANS APP
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