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 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 The amount of magnetic flux that is not confined to the core material of an electromagnet None of these The force of attraction between the poles of a permanent and temporary magnetic field 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 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 Which one of the following statements best applies to a parallel RLC circuit? None of these All of these The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current The current waveform for each component always has the same amplitude and phase as the applied current None of these All of these The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current The current waveform for each component always has the same amplitude and phase as the applied current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for resistance is the: watt None of these volt ohm ampere watt None of these volt ohm ampere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 0.5A 7200 A 180 A None of these 0.083333333333333 0.5A 7200 A 180 A None of these 0.083333333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: None of these the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the amount of inductance required to change the frequency of a current by 1 Hz the number of turns of wire in an inductor multiplied by the amount of current flowing through it None of these the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the amount of inductance required to change the frequency of a current by 1 Hz the number of turns of wire in an inductor multiplied by the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The rate of change of the number of lines of magnetic force None of these The concentration of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force None of these The concentration of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
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