Electronic Principles One henry of inductance is defined as: the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required to change the frequency of a current by 1 Hz the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second None of these the amount of counter emf required to reduce a current to 1 A the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required to change the frequency of a current by 1 Hz the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second None of these the amount of counter emf required to reduce a current to 1 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? The amount of magnetic flux that is not confined to the core material of an electromagnet 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 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 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 None of these The circular magnetic field that surrounds a conductor carrying a current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree None of these ac current is converted to dc voltage ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree None of these ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A real voltage source has Infinite internal resistance None of these Zero internal resistance A large internal resistance A small internal resistance Infinite internal resistance None of these Zero internal resistance A large internal resistance A small internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the collector current increases, what does the current gain do? increases None of these any of the above decreases stays the same increases None of these any of the above decreases stays the same ANSWER DOWNLOAD EXAMIANS APP
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