Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive One - a negative terminal Two - a negative terminal and a positive terminal None of these Three - negative, positive and neutral terminals Four - two negative and two positive One - a negative terminal Two - a negative terminal and a positive terminal None of these Three - negative, positive and neutral terminals 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: One-half the primary current Twice the primary current Same as the primary current No more than 10% less than the primary current None of these One-half the primary current Twice the primary current Same as the primary current No more than 10% less than the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: reduces the value of inductance by one-half reduces the value of inductance by one-fourth multiplies the value of inductance by four None of these multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth multiplies the value of inductance by four None of these multiplies the value of inductance by two ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 180 A 7200 A 0.5A 0.083333333333333 None of these 180 A 7200 A 0.5A 0.083333333333333 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode 12 mA 10 mA 14 mA 11 mA None of these 12 mA 10 mA 14 mA 11 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and ions Protons only Electrons, ions, and neutrons Electrons, protons, and neutrons None of these Electrons, protons, and ions Protons only Electrons, ions, and neutrons Electrons, protons, and neutrons None of these ANSWER DOWNLOAD EXAMIANS APP
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