Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage reverses polarity periodically None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time The voltage reverses polarity periodically None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? None of these Number of lines of force Flux density Reluctance Magnetomotive force None of these Number of lines of force Flux density Reluctance Magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor equal to the sum of the individual inductance values None of these equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor equal to the sum of the individual inductance values None of these equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 300 µA None of these 0.25 µA 350 µA 250 µA 300 µA None of these 0.25 µA 350 µA 250 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A diamagnetic material None of these All of these A feiTomagnetic material A paramagnetic material A diamagnetic material None of these All of these A feiTomagnetic material A paramagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical pressure to electrical energy is called a: photodiode solar cell piezoelectric device None of these nicad cell photodiode solar cell piezoelectric device None of these nicad cell ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS