Electronic Principles Current and voltage are said to be in phase when: None of these they have the same amplitude and frequency All of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc None of these they have the same amplitude and frequency All of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: the amount of counter emf required to reduce a current to 1 A the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of inductance required to change the frequency of a current by 1 Hz None of these the amount of counter emf required to reduce a current to 1 A the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of inductance required to change the frequency of a current by 1 Hz None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a series circuit? The total voltage in a series circuit is equal to the average value of the individual voltages None of these The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage in a series circuit is always less than the value of the smallest voltage The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages None of these The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage in a series circuit is always less than the value of the smallest voltage The total voltage of a series circuit is equal to the total current divided by the total resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? There is no valid comparison Permeance Permeability Retentivity Reluctance There is no valid comparison Permeance Permeability Retentivity Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal voltage source and series resistor None of these Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal voltage source and series resistor None of these Ideal current source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? The total voltage is equal to the sum of the voltages across the resistance and inductance The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltage is equal to the sum of the voltages across the resistance and inductance The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage lags the total current by less than 90 None of these The voltage always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
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