Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Wattmeter None of these Voltmeter Ohmmeter Ammeter Wattmeter None of these Voltmeter Ohmmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of More than 100 k Ohm None of these Less than 10 Ohm Less than 100 k Ohm At least 10 Ohm More than 100 k Ohm None of these Less than 10 Ohm Less than 100 k Ohm At least 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 10 k Ohm 2 k Ohm None of these 1 k Ohm 20 k Ohm 10 k Ohm 2 k Ohm None of these 1 k Ohm 20 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Like magnetic poles attract, while unlike poles repel Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
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