Electronic Principles What is one important thing transistors do? Amplify weak signals Regulate voltage Rectify line voltage None of these Emit light Amplify weak signals Regulate voltage Rectify line voltage None of these Emit light ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal One - a negative terminal None of these Four - two negative and two positive Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal One - a negative terminal None of these Four - two negative and two positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? 0.151 mA 0.995 mA 2.02 A 157 raA None of these 0.151 mA 0.995 mA 2.02 A 157 raA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? None of these 0.05 mA 13 mA 3.75 mA 3.2 mA None of these 0.05 mA 13 mA 3.75 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: None of these 1000 A 10000A one million amperes one-millionth of an ampere None of these 1000 A 10000A one million amperes one-millionth of an ampere ANSWER DOWNLOAD EXAMIANS APP
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