Electronic Principles What is a free electron? An electron that has no electrical charge An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has twice the amount of charge of a normal electron ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole None of these that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole None of these that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: doubles the amount of inductive reactance None of these has no effect on the inductive reactance cuts the inductive reactance in half multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance None of these has no effect on the inductive reactance cuts the inductive reactance in half multiplies the inductive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? 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 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 None of these 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 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: dissipating 1 W of power None of these causing an ac phase shift greater than 90 degree storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing dissipating 1 W of power None of these causing an ac phase shift greater than 90 degree storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.3 A 0.6 A 0.4 A 0.2 A None of these 0.3 A 0.6 A 0.4 A 0.2 A None of these ANSWER DOWNLOAD EXAMIANS APP
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