Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 208 V 707 V None of these 700 V 651 V 208 V 707 V None of these 700 V 651 V 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? Wattmeter Voltmeter None of these Ohmmeter Ammeter Wattmeter Voltmeter None of these Ohmmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
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? None of these 2 43922 3 43891 None of these 2 43922 3 43891 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? 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 Like magnetic poles repel; unlike poles attract None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current is converted to dc voltage ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree None of these ac current is converted to dc voltage ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is The number of free electrons in an atom The flow of charged particles through a material The force that causes electrons to flow None of these An imbalance of electrical charges The number of free electrons in an atom The flow of charged particles through a material The force that causes electrons to flow None of these An imbalance of electrical charges ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS