Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature None of these 0oC Decreases Increases Stays the same None of these 0oC Decreases Increases Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half None of these has no effect on the inductance multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half None of these has no effect on the inductance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 2 43922 43891 None of these 3 2 43922 43891 None of these 3 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? 20 W 100 W 200 W 1000 W None of these 20 W 100 W 200 W 1000 W None of these 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? 122 W 64 W 3 W None of these 6 W 122 W 64 W 3 W None of these 6 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract Like magnetic poles attract, while unlike poles repel None of these Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract Like magnetic poles attract, while unlike poles repel None of these ANSWER DOWNLOAD EXAMIANS APP
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