Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? None of these 10.3 µA 7.8 µA 7.75 µA 14.8 µA None of these 10.3 µA 7.8 µA 7.75 µA 14.8 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Lifetime Covalent bonding Thermal energy Recombination None of these Lifetime Covalent bonding Thermal energy Recombination None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current lags the voltage by 90 degree ac current is converted to dc voltage None of these ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current is converted to dc voltage None of these ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like None of these a conductor a piece of copper wire a battery an insulator None of these a conductor a piece of copper wire a battery an insulator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Norton current is sometimes called the Thevenin current Shorted-load current Open-load current None of these Thevenin voltage Thevenin current Shorted-load current Open-load current None of these Thevenin voltage ANSWER DOWNLOAD EXAMIANS APP
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