Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature 0oC None of these Increases Decreases Stays the same 0oC None of these Increases Decreases Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc All of these they have the same amplitude and frequency None 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 All of these they have the same amplitude and frequency None of these their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: doubles the amount of capacitive reactance has no effect on the capacitive reactance cuts the capacitive reactance in half multiplies the capacitive reactance by 7 None of these doubles the amount of capacitive reactance has no effect on the capacitive reactance cuts the capacitive reactance in half multiplies the capacitive reactance by 7 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a series RC circuit? None of these The total current is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance None of these The total current is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? None of these The opposition to a build-up of magnetic fields The force that maintains lines of force The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force None of these The opposition to a build-up of magnetic fields The force that maintains lines of force The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? None of these Solar energy Electronical energy Mechanical energy Chemical energy None of these Solar energy Electronical energy Mechanical energy Chemical energy ANSWER DOWNLOAD EXAMIANS APP
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