Electronic Principles Who invented the first junction transistor? Gomes None of these Shockley Smith Fisher Gomes None of these Shockley Smith Fisher ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between a conductor and an insulator? None of these An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all A conductor allows current to flow much easier than an insulator does The difference between conductors and insulators depends on how they are used An insulator allows current to flow much easier than a conductor does None of these An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all A conductor allows current to flow much easier than an insulator does The difference between conductors and insulators depends on how they are used An insulator allows current to flow much easier than a conductor does ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 20 mW None of these 200 mW 300 mW 10 mW 20 mW None of these 200 mW 300 mW 10 mW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current can flow through a normally open push button switch as long as: None of these you are not pressing the button its contact remain open its contact remain open you are pressing the button None of these you are not pressing the button its contact remain open its contact remain open you are pressing the button ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 180 4 None of these 0.5 0.25 180 4 None of these 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
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