Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Thermal energy Doping Valence electrons None of these Free electrons Thermal energy Doping Valence electrons None of these Free electrons 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: battery rotor armature commutator None of these battery rotor armature commutator None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? None of these 1000 A 0.1 A 100 A 0.41666666666667 None of these 1000 A 0.1 A 100 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Most AC power is obtained from: batteries generators lightning oscillators None of these batteries generators lightning oscillators None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91? 200 W 1000 W 100 W 20 W None of these 200 W 1000 W 100 W 20 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which is the most widely used semiconductor? Germanium Copper None of these All of these Silicon Germanium Copper None of these All of these Silicon ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS