Electronic Principles A device that converts chemical energy to electrical energy is called a: None of these chemical cell thermocouple solar cell electric device None of these chemical cell thermocouple solar cell electric device ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow None of these Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? many Same number as free electrons None of these less than the free electrons Only those produced by thermal energy many Same number as free electrons None of these less than the free electrons Only those produced by thermal energy ANSWER DOWNLOAD EXAMIANS APP
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 7.8 µA 7.75 µA 10.3 µA 14.8 µA None of these 7.8 µA 7.75 µA 10.3 µA 14.8 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At cut off, the Q point is at lower end of the load line upper end of the load line middle of the load line None of these infinity lower end of the load line upper end of the load line middle of the load line None of these infinity ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: 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 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 ANSWER DOWNLOAD EXAMIANS APP
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