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 300 mA 200 mA 208 mA 7.8 mA None of these 300 mA 200 mA 208 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 30 Ohm None of these 100 Ohm 10 Ohm 20 Ohm 30 Ohm None of these 100 Ohm 10 Ohm 20 Ohm 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: commutator rotor None of these battery armature commutator rotor None of these battery armature ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 690 ohm 220 ohm 445 ohm None of these 150 ohm 690 ohm 220 ohm 445 ohm None of these 150 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal current source and parallel resistor Ideal current source and series resistor None of these Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and parallel resistor Ideal current source and series resistor None of these Ideal voltage source and parallel resistor Ideal voltage source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 8 V 16 V 3 V 7.5 V None of these 8 V 16 V 3 V 7.5 V None of these ANSWER DOWNLOAD EXAMIANS APP
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