Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet 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 most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet 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 most apparent when the current through the coil of an electromagnet changes frequently ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from neutral to positive from negative to positive from positive to negative None of these from left to right from neutral to positive from negative to positive from positive to negative None of these from left to right ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? None of these 6 W 64 W 122 W 3 W None of these 6 W 64 W 122 W 3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RC circuit? None of these The total voltage leads the total current by less than 90 degree The total voltage is equal to the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage is less than the sum of the voltages across the resistance and capacitance None of these The total voltage leads the total current by less than 90 degree The total voltage is equal to the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage is less than the sum of the voltages across the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a good conductor of magnetic fields None of these a poor conductor of electrostatic fields a good insulator a good conductor a good conductor of magnetic fields None of these a poor conductor of electrostatic fields a good insulator a good conductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 312 Ohm less than 1 Ohm 690 Ohm 1590 Ohm None of these 312 Ohm less than 1 Ohm 690 Ohm 1590 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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