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 18.2 mA None of these 55 A 16.3 mA 55.86 A 18.2 mA None of these 55 A 16.3 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Most AC power is obtained from: batteries None of these generators oscillators lightning batteries None of these generators oscillators lightning 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? 208 mA None of these 7.8 mA 300 mA 200 mA 208 mA None of these 7.8 mA 300 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles repel; unlike poles attract Current flowing through a conductor generates a magnetic field Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles repel; unlike poles attract Current flowing through a conductor generates a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of voltages in a loop is equal to zero The total voltage in a parallel circuit is less than the value of the smallest voltage None of these The algebraic sum of voltages entering and leaving a point is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of voltages in a loop is equal to zero The total voltage in a parallel circuit is less than the value of the smallest voltage None of these The algebraic sum of voltages entering and leaving a point is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Clockwise Counterclockwise Into this page Out of this page None of these Clockwise Counterclockwise Into this page Out of this page None of these ANSWER DOWNLOAD EXAMIANS APP
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