Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? None of these 7.8 mA 300 mA 200 mA 208 mA None of these 7.8 mA 300 mA 200 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for current is the: None of these watt volt ohm ampere None of these watt volt ohm ampere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet None of these that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How many protons does the nucleus of a silicon atom contain? None of these 29 14 48 4 None of these 29 14 48 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 64 W 6 W 3 W 122 W None of these 64 W 6 W 3 W 122 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = E2/R I = P/E P = IE P = I2R None of these P = E2/R I = P/E P = IE P = I2R None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS