Electronic Principles Holes act like: Crystals None of these Positive charges Atoms Negative charges Crystals None of these Positive charges Atoms Negative charges ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive Three - negative, positive and neutral terminals None of these One - a negative terminal Two - a negative terminal and a positive terminal Four - two negative and two positive Three - negative, positive and neutral terminals None of these One - a negative terminal Two - a negative terminal and a positive terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? Magnetomotive force Number of lines of force None of these Flux density Reluctance Magnetomotive force Number of lines of force None of these Flux density Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point off the load line None of these down up nowhere off the load line None of these down up nowhere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Wattmeter None of these Ohmmeter Ammeter Voltmeter Wattmeter None of these Ohmmeter Ammeter Voltmeter 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? 300 mA 200 mA 208 mA None of these 7.8 mA 300 mA 200 mA 208 mA None of these 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
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