Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43922 43891 3 2 None of these 43922 43891 3 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Norton's theorem replaces a complicated circuit facing a load by an None of these Ideal current source and series resistor Ideal voltage source and parallel resistor Ideal current source and parallel resistor Ideal voltage source and series resistor None of these Ideal current source and series resistor Ideal voltage source and parallel resistor Ideal current source and parallel resistor Ideal voltage source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 100 Ohm or more None of these 10 Ohm 60 Ohm 50 Ohm 100 Ohm or more None of these 10 Ohm 60 Ohm 50 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency their waveforms are both ac or both dc None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: thrice the amount of total current None of these has no effect on the total circuit current cuts the total current by one-half doubles the amount of total current thrice the amount of total current None of these has no effect on the total circuit current cuts the total current by one-half doubles the amount of total current ANSWER DOWNLOAD EXAMIANS APP
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