Electronic Principles Which one of the following is most likely used for measuring the rate of electron flow? Ohmmeter Ammeter None of these Voltmeter Wattmeter Ohmmeter Ammeter None of these Voltmeter Wattmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: frequent changes in the direction of current through the coil causes heating effects in the core material the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these frequent changes in the direction of current through the coil causes heating effects in the core material the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel; unlike poles attract None of these Current flowing through a conductor generates a magnetic field Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel; unlike poles attract None of these Current flowing through a conductor generates a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 77.7 ohm 89.3 ohm 88.8 ohm 224 ohm None of these 77.7 ohm 89.3 ohm 88.8 ohm 224 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 1590 Ohm None of these 690 Ohm 312 Ohm less than 1 Ohm 1590 Ohm None of these 690 Ohm 312 Ohm less than 1 Ohm 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 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 electrostatic lines of force how well the material concentrates magnetic 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 electrostatic lines of force ANSWER DOWNLOAD EXAMIANS APP
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