Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 10.3 µA 14.8 µA None of these 7.75 µA 7.8 µA 10.3 µA 14.8 µA None of these 7.75 µA 7.8 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? The total current is equal to the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance None of these The total current is equal to the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 0.20833333333333 50 A 20 A None of these 0.20833333333333 50 A 20 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Number of lines of force Reluctance Magnetomotive force Flux density None of these Number of lines of force Reluctance Magnetomotive force Flux density 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 None of these less than the free electrons Same number as free electrons Only those produced by thermal energy many None of these less than the free electrons Same number as free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A paramagnetic material All of these None of these A ferromagnetic material A diamagnetic material A paramagnetic material All of these None of these A ferromagnetic material A diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
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