Electronic Principles Current is An imbalance of electrical charges None of these The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material An imbalance of electrical charges None of these The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ammeter Ohmmeter None of these Wattmeter Voltmeter Ammeter Ohmmeter None of these Wattmeter Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? None of these Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal Three - negative, positive and neutral terminals None of these Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal Three - negative, positive and neutral terminals 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? 550 Ohm 310 Ohm 410 Ohm None of these 400 Ohm 550 Ohm 310 Ohm 410 Ohm None of these 400 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between a conductor and an insulator? None of these An insulator allows current to flow much easier than a conductor does The difference between conductors and insulators depends on how they are used 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 None of these An insulator allows current to flow much easier than a conductor does The difference between conductors and insulators depends on how they are used 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? None of these An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has no charge None of these An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has a negative charge An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has no charge ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS