Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature None of these 0oC Decreases Increases Stays the same None of these 0oC Decreases Increases Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? None of these 10.738 0.575 0.707 1.5 None of these 10.738 0.575 0.707 1.5 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 lags the total current by less than 90 The total voltage is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit None of these 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 The total voltage is equal to the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltages is less than the sum of the voltages across the resistance and inductance 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? Magnetomotive force Number of lines of force Flux density None of these Reluctance Magnetomotive force Number of lines of force Flux density None of these Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the core material is saturated Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the core material is saturated ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency None of these their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency None of these their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time All of these ANSWER DOWNLOAD EXAMIANS APP
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