Electronic Principles What is a negative ion? None of these An atom that contains more electrons than neutrons An atom that contains more protons than electrons An atom that contains more electrons than protons An atom that contains more protons than neutrons None of these An atom that contains more electrons than neutrons An atom that contains more protons than electrons An atom that contains more electrons than protons An atom that contains more protons than neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage causes current to flow in two directions at the same time None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically The voltage causes current to flow in two directions at the same time None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc they have the same amplitude and frequency All of these their waveforms cross through zero and reach positive and negative peaks at the same time None of these their waveforms are both ac or both dc they have the same amplitude and frequency All of these their waveforms cross through zero and reach positive and negative peaks at the same time None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: None of these Twice the primary current One-half the primary current No more than 10% less than the primary current Same as the primary current None of these Twice the primary current One-half the primary current No more than 10% less than the primary current Same as the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals -276o C 0o C 25o C -273o C None of these -276o C 0o C 25o C -273o C None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 68.4 mA 34.4 mA 24.2 mA None of these 28.4 mA 68.4 mA 34.4 mA 24.2 mA None of these 28.4 mA ANSWER DOWNLOAD EXAMIANS APP
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