Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? None of these 2.02 A 0.02 A 0.955 A 0.41666666666667 None of these 2.02 A 0.02 A 0.955 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? E = PR None of these E = I2R I = ER I = E/R E = PR None of these E = I2R I = ER I = E/R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 38.74 V 30.4 V 35.4 V None of these 37.4 V 38.74 V 30.4 V 35.4 V None of these 37.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second dissipating 1 W of power None of these causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second dissipating 1 W of power None of these 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 None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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 None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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 None of these The total current is less than the sum of the currents through the resistance and inductance The total current leads the total voltage by less than 90 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 None of these The total current is less than the sum of the currents through the resistance and inductance The total current leads the total voltage by less than 90 ANSWER DOWNLOAD EXAMIANS APP
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