Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.8 µA 14.8 µA None of these 10.3 µA 7.75 µA 7.8 µA 14.8 µA None of these 10.3 µA 7.75 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? An atom that contains more electrons than neutrons An atom that contains more protons than electrons An atom that contains more protons than neutrons An atom that contains more electrons than protons None of these An atom that contains more electrons than neutrons An atom that contains more protons than electrons An atom that contains more protons than neutrons An atom that contains more electrons than protons None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? Only those produced by thermal energy many less than the free electrons None of these Same number as free electrons Only those produced by thermal energy many less than the free electrons None of these Same number as free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always increases as the applied frequency increases is minimum at the resonant frequency None of these is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases is minimum at the resonant frequency None of these is maximum at the resonant frequency always decreases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? None of these The rate of change of the number of lines of magnetic force The force that maintains lines of force The concentration of lines of magnetic force The opposition to a build-up of magnetic fields None of these The rate of change of the number of lines of magnetic force The force that maintains lines of force The concentration of lines of magnetic force The opposition to a build-up of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts light energy to electrical energy is called a: solar cell thermocouple photodiode None of these photo transistor solar cell thermocouple photodiode None of these photo transistor ANSWER DOWNLOAD EXAMIANS APP
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