Electronic Principles Which one of the following phrases best describes residual magnetism? Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current The amount of magnetic flux that is not confined to the core material of an electromagnet None of these Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current The amount of magnetic flux that is not confined to the core material of an electromagnet None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for resistance is the: volt watt ampere ohm None of these volt watt ampere ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The nucleus of the copper atom contains how many protons? 4 29 None of these 18 1 4 29 None of these 18 1 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? None of these Protons only Electrons, protons, and ions Electrons, ions, and neutrons Electrons, protons, and neutrons None of these Protons only Electrons, protons, and ions Electrons, ions, and neutrons Electrons, protons, and neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The algebraic sum of voltages entering and leaving a point is equal to zero The total voltage in a parallel circuit is less than the value of the smallest voltage None of these 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 The algebraic sum of voltages entering and leaving a point is equal to zero The total voltage in a parallel circuit is less than the value of the smallest voltage None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? less than 1 Ohm 690 Ohm 312 Ohm 1590 Ohm None of these less than 1 Ohm 690 Ohm 312 Ohm 1590 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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