Electronic Principles The basic unit of measurement for current is the: ampere volt None of these ohm watt ampere volt None of these ohm watt ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic semiconductor has No holes None of these a few free electrons and holes many holes many free electrons No holes None of these a few free electrons and holes many holes many free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Covalent bonding Lifetime None of these Recombination Thermal energy Covalent bonding Lifetime None of these Recombination Thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf None of these frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf None of these frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? 2.02 A 0.955 A None of these 0.02 A 0.41666666666667 2.02 A 0.955 A None of these 0.02 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? None of these R = E2/P P = E2/R I = P/E P = PR None of these R = E2/P P = E2/R I = P/E P = PR ANSWER DOWNLOAD EXAMIANS APP
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