Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 36 V None of these 0 V 60 V 40 V 36 V None of these 0 V 60 V 40 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 kV is: 100 mV 1.00 V None of these 1000 mV 1000 V 100 mV 1.00 V None of these 1000 mV 1000 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Valence electrons Free electrons Doping Thermal energy None of these Valence electrons Free electrons Doping Thermal energy None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the: commutator rotor battery None of these armature commutator rotor battery None of these armature ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
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