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? 707 V 208 V 700 V None of these 651 V 707 V 208 V 700 V None of these 651 V 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 Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these 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? Ammeter Voltmeter None of these Ohmmeter Wattmeter Ammeter Voltmeter None of these Ohmmeter Wattmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for current is the: None of these volt ohm watt ampere None of these volt ohm watt ampere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used for creating static electricity? Mechanical energy Chemical energy None of these Solar energy Light energy Mechanical energy Chemical energy None of these Solar energy Light energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? None of these All of these Current lags the voltage through a resistor Current and voltages are in phase through a resistor Current leads the voltage through a resistor None of these All of these Current lags the voltage through a resistor Current and voltages are in phase through a resistor Current leads the voltage through a resistor ANSWER DOWNLOAD EXAMIANS APP
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