Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel None of these Current flowing through a conductor generates a magnetic field Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel None of these Current flowing through a conductor generates a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy Chemical energy Solar energy None of these Electronical energy Mechanical energy Chemical energy Solar energy None of these Electronical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A battery is a device composed of one or more: piezoeletric cells None of these voltage generators solar cells chemical cells piezoeletric cells None of these voltage generators solar cells chemical cells ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for resistance is the: ampere watt None of these ohm volt ampere watt None of these ohm volt ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.2 A 0.6 A 0.3 A 0.4 A None of these 0.2 A 0.6 A 0.3 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode? 55.86 A None of these 55 A 16.3 mA 18.2 mA 55.86 A None of these 55 A 16.3 mA 18.2 mA ANSWER DOWNLOAD EXAMIANS APP
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