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 None of these 3 2 43922 43891 None of these 3 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 30 Ohm 100 Ohm None of these 20 Ohm 10 Ohm 30 Ohm 100 Ohm None of these 20 Ohm 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles repel; unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel Current flowing through a conductor generates a magnetic field Like magnetic poles repel; unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel Current flowing through a conductor generates a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RL circuit? The total voltage is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltages is equal to the sum of the voltages across the resistance and inductance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? Ohmmeter Voltmeter Ammeter Wattmeter None of these Ohmmeter Voltmeter Ammeter Wattmeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.8 µA 10.3 µA 14.8 µA None of these 7.75 µA 7.8 µA 10.3 µA 14.8 µA None of these 7.75 µA ANSWER DOWNLOAD EXAMIANS APP
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