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 Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 400 Ohm 410 Ohm 550 Ohm 310 Ohm None of these 400 Ohm 410 Ohm 550 Ohm 310 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from positive to negative from negative to positive None of these from neutral to positive from left to right from positive to negative from negative to positive None of these from neutral to positive from left to right ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and ions None of these Electrons, ions, and neutrons Electrons, protons, and neutrons Protons only Electrons, protons, and ions None of these Electrons, ions, and neutrons Electrons, protons, and neutrons Protons only ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? An atom that contains more electrons than neutrons None of these An atom that contains more protons than neutrons An atom that contains more protons than electrons An atom that contains more electrons than protons An atom that contains more electrons than neutrons None of these An atom that contains more protons than neutrons An atom that contains more protons than electrons An atom that contains more electrons than protons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a: None of these parallel RC circuit parallel RLC circuit operated above its resonant frequency parallel RL circuit purely resistive circuit None of these parallel RC circuit parallel RLC circuit operated above its resonant frequency parallel RL circuit purely resistive circuit ANSWER DOWNLOAD EXAMIANS APP
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