Electronic Principles What is a negative ion? An atom that contains more electrons than neutrons An atom that contains more electrons than protons An atom that contains more protons than electrons None of these An atom that contains more protons than neutrons An atom that contains more electrons than neutrons An atom that contains more electrons than protons An atom that contains more protons than electrons None of these An atom that contains more protons than neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Rectify line voltage None of these Regulate voltage Amplify weak signals Emit light Rectify line voltage None of these Regulate voltage Amplify weak signals Emit light ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 20 A None of these 50 A 0.20833333333333 20 A None of these 50 A 0.20833333333333 ANSWER DOWNLOAD EXAMIANS APP
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 208 mA 300 mA 7.8 mA 200 mA None of these 208 mA 300 mA 7.8 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Norton's theorem replaces a complicated circuit facing a load by an None of these Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and parallel resistor Ideal current source and series resistor None of these Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and parallel resistor Ideal current source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? P = E2/R I = P/E R = E2/P P = PR None of these P = E2/R I = P/E R = E2/P P = PR None of these ANSWER DOWNLOAD EXAMIANS APP
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