Electronic Principles The period of a waveform is: the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second the time required to complete one full cycle ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a good conductor of magnetic fields None of these a good conductor a poor conductor of electrostatic fields a good insulator a good conductor of magnetic fields None of these a good conductor a poor conductor of electrostatic fields a good insulator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An ideal voltage source has A load dependent voltage Infinite internal resistance A load-dependent current None of these Zero internal resistance A load dependent voltage Infinite internal resistance A load-dependent current None of these Zero internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? Same number as free electrons many None of these less than the free electrons Only those produced by thermal energy Same number as free electrons many None of these less than the free electrons Only those produced by thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 0.25 µA None of these 250 µA 350 µA 300 µA 0.25 µA None of these 250 µA 350 µA 300 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy None of these Solar energy Chemical energy Electronical energy Mechanical energy None of these Solar energy Chemical energy Electronical energy ANSWER DOWNLOAD EXAMIANS APP
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