Electronic Principles The value of a capacitor can be made larger by: increasing the area of the plates increasing the voltage applied to the plates decreasing the area of the plates increasing the frequency of the applied voltage None of these increasing the area of the plates increasing the voltage applied to the plates decreasing the area of the plates increasing the frequency of the applied voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? None of these 4 180 0.25 0.5 None of these 4 180 0.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 5 Ohm 50 Ohm or more None of these 100 Ohm 6 Ohm 5 Ohm 50 Ohm or more None of these 100 Ohm 6 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Clockwise Out of this page Counterclockwise None of these Into this page Clockwise Out of this page Counterclockwise None of these Into this page ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel None of these Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel 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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