Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal Three - negative, positive and neutral terminals None of these Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal Three - negative, positive and neutral terminals None of these 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? 0.6 A 0.2 A None of these 0.4 A 0.3 A 0.6 A 0.2 A None of these 0.4 A 0.3 A 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? 28.4 mA None of these 34.4 mA 24.2 mA 68.4 mA 28.4 mA None of these 34.4 mA 24.2 mA 68.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: 10000A one million amperes 1000 A one-millionth of an ampere None of these 10000A one million amperes 1000 A one-millionth of an ampere None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best applies to a series RLC circuit? The current waveform for each component always has the same amplitude and phase as the applied current The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current None of these All of these The current waveform for each component always has the same amplitude and phase as the applied current The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At cut off, the Q point is at infinity lower end of the load line middle of the load line upper end of the load line None of these infinity lower end of the load line middle of the load line upper end of the load line None of these ANSWER DOWNLOAD EXAMIANS APP
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