Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ammeter Wattmeter Voltmeter Ohmmeter None of these Ammeter Wattmeter Voltmeter Ohmmeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The net charge of a neutral copper atom is None of these 4 1 -1 None of these 4 1 -1 ANSWER DOWNLOAD EXAMIANS APP
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? None of these 700 V 707 V 651 V 208 V None of these 700 V 707 V 651 V 208 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: has no effect on the total circuit current doubles the amount of total current thrice the amount of total current None of these cuts the total current by one-half has no effect on the total circuit current doubles the amount of total current thrice the amount of total current None of these cuts the total current by one-half 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 repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles attract, while unlike poles repel Current flowing through a conductor generates a magnetic field Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles attract, while unlike poles repel ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 220 Ohm, 5% 22,000 Ohm, 5% 22, 000 Ohm, 10% 220 Ohm, 10% None of these 220 Ohm, 5% 22,000 Ohm, 5% 22, 000 Ohm, 10% 220 Ohm, 10% None of these ANSWER DOWNLOAD EXAMIANS APP
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