Electronic Principles Which one of the following phrases best describes residual magnetism? The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 0.4 V None of these 4.73 24 V 600 V 0.4 V None of these 4.73 24 V 600 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, ions, and neutrons Protons only None of these Electrons, protons, and ions Electrons, protons, and neutrons Electrons, ions, and neutrons Protons only None of these Electrons, protons, and ions Electrons, protons, and neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a direct statement of Ohm's law? The total resistance of a parallel circuit is less than the value of the smallest resistance The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of voltages in a loop 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 None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of voltages in a loop 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: the difference between inductive and capacitive reactance is equal to the resistance None of these inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance inductive reactance is equal to the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance None of these inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance inductive reactance is equal to the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Thevenin resistance is equal in value to the Internal resistance of a Morton circuit Half the load resistance Load resistance Open-load resistance None of these Internal resistance of a Morton circuit Half the load resistance Load resistance Open-load resistance None of these ANSWER DOWNLOAD EXAMIANS APP