Electronic Principles A transistor has how many doped regions? 1 None of these 3 2 4 1 None of these 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? One - a negative terminal None of these Two - a negative terminal and a positive terminal Four - two negative and two positive Three - negative, positive and neutral terminals One - a negative terminal None of these Two - a negative terminal and a positive terminal Four - two negative and two positive Three - negative, positive and neutral terminals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rotating coil of wire in an electric motor is called the: None of these brush armature loop commutator None of these brush armature loop commutator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? E = I2R E = PR None of these I = E/R I = ER E = I2R E = PR None of these I = E/R I = ER ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? None of these 20 A 0.20833333333333 50 A None of these 20 A 0.20833333333333 50 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Free electrons Valence electrons Doping None of these Thermal energy Free electrons Valence electrons Doping None of these Thermal energy ANSWER DOWNLOAD EXAMIANS APP
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