Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.75 µA 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: how well the material concentrates electrostatic lines of force how well the material concentrates magnetic lines of force None of these the amount of opposition to the current flow the amount of voltage it can withstand before breaking down how well the material concentrates electrostatic lines of force how well the material concentrates magnetic lines of force None of these the amount of opposition to the current flow the amount of voltage it can withstand before breaking down ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How may valence electrons does a silicon atom have? 4 1 None of these 2 4 1 None of these 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: from positive to negative from negative to positive from neutral to positive None of these from right to left from positive to negative from negative to positive from neutral to positive None of these from right to left ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? None of these 4 180 0.5 0.25 None of these 4 180 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts chemical energy to electrical energy is called a: solar cell electric device chemical cell None of these thermocouple solar cell electric device chemical cell None of these thermocouple ANSWER DOWNLOAD EXAMIANS APP
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