Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 77.7 ohm 88.8 ohm None of these 89.3 ohm 224 ohm 77.7 ohm 88.8 ohm None of these 89.3 ohm 224 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? 1000 A None of these 0.41666666666667 100 A 0.1 A 1000 A None of these 0.41666666666667 100 A 0.1 A 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? None of these Number of lines of force Reluctance Magnetomotive force Flux density None of these Number of lines of force Reluctance Magnetomotive force Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for current is the: volt watt ohm None of these ampere volt watt ohm None of these ampere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? 100 Ohm Less than 1 Ohm None of these 444 Ohm 628 Ohm 100 Ohm Less than 1 Ohm None of these 444 Ohm 628 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet None of these Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet None of these Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
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