Electronic Principles When the collector current increases, what does the current gain do? increases any of the above None of these decreases stays the same increases any of the above None of these decreases stays the same 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? 200 mA 208 mA 7.8 mA None of these 300 mA 200 mA 208 mA 7.8 mA None of these 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? 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 An atom that contains more electrons than neutrons An atom that contains more electrons than protons An atom that contains more protons than electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: None of these multiplies the capacitive reactance by 6.28 cuts the capacitive reactance in half doubles the amount of a capacitive reactance has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 6.28 cuts the capacitive reactance in half doubles the amount of a capacitive reactance has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.3 A None of these 0.4 A 0.6 A 0.2 A 0.3 A None of these 0.4 A 0.6 A 0.2 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The valence electron of a copper atom experiences what kind of attraction toward the nucleus? Weak Neutral Impossible to say Strong None of these Weak Neutral Impossible to say Strong None of these ANSWER DOWNLOAD EXAMIANS APP
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