Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Flux density Reluctance Magnetomotive force Number of lines of force None of these Flux density Reluctance Magnetomotive force Number of lines of force None of these ANSWER DOWNLOAD EXAMIANS APP
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 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 inductance required to change the frequency of a current by 1 Hz 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 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 inductance required to change the frequency of a current by 1 Hz the amount of counter emf required to reduce a current to 1 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? None of these 1000 W 200 W 20 W 100 W None of these 1000 W 200 W 20 W 100 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA 3.2 mA 3.75 mA None of these 13 mA 0.05 mA 3.2 mA 3.75 mA None of these 13 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current is converted to dc voltage None of these ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ac current is converted to dc voltage None of these ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: 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 frequency on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time 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 frequency on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
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