Electronic Principles How many types of flow are there in a semiconductor? 3 None of these 2 1 3 None of these 2 1 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? 0.5 4 0.25 180 None of these 0.5 4 0.25 180 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Out of this page Into this page Counterclockwise Clockwise None of these Out of this page Into this page Counterclockwise Clockwise None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: how well the material concentrates magnetic lines of force how well the material concentrates electrostatic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down None of these how well the material concentrates magnetic lines of force how well the material concentrates electrostatic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down 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? Reluctance Number of lines of force Flux density Magnetomotive force None of these Reluctance Number of lines of force Flux density Magnetomotive force None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 30 V None of these 24 V 18 V 12 V 30 V None of these 24 V 18 V 12 V ANSWER DOWNLOAD EXAMIANS APP
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