Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Chemical energy Electronical energy Solar energy None of these Mechanical energy Chemical energy Electronical energy Solar energy None of these Mechanical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Gained a proton Gained an electron Lost a proton Lost an electron None of these Gained a proton Gained an electron Lost a proton Lost an electron None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Holes are the minority carriers in which type of semiconductor? p-type Intrinsic n-type Extrinsic None of these p-type Intrinsic n-type Extrinsic None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Free electrons Doping Thermal energy None of these Valence electrons Free electrons Doping Thermal energy None of these Valence electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? None of these 300 µA 350 µA 250 µA 0.25 µA None of these 300 µA 350 µA 250 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain varies enormously is contant equals the collector current divided by the base current varies slightly None of these varies enormously is contant equals the collector current divided by the base current varies slightly None of these ANSWER DOWNLOAD EXAMIANS APP
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