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? None of these 200 mA 208 mA 300 mA 7.8 mA None of these 200 mA 208 mA 300 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Silicon atoms combine into an orderly pattern called a Semiconductor None of these Crystal Covalent bond Valence orbit Semiconductor None of these Crystal Covalent bond Valence orbit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the: None of these armature commutator battery rotor None of these armature commutator battery rotor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? The total current is less than the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit The total current is equal to the sum of the currents through the resistance and inductance None of these The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit The total current is equal to the sum of the currents through the resistance and inductance None of these The total current leads the total voltage by less than 90 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Norton's theorem replaces a complicated circuit facing a load by an Ideal current source and series resistor Ideal voltage source and series resistor Ideal current source and parallel resistor None of these Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal voltage source and series resistor Ideal current source and parallel resistor None of these Ideal voltage source and parallel resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeability Reluctance Permeance There is no valid comparison Retentivity Permeability Reluctance Permeance There is no valid comparison Retentivity ANSWER DOWNLOAD EXAMIANS APP
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