Electronic Principles In a step-down transformer, which is larger? Primary voltage Impossible to say None of these Secondary voltage Neither Primary voltage Impossible to say None of these Secondary voltage Neither ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude equal to 1.41 times the peak amplitude the number of cycles completed in one second None of these the time required to complete one full cycle equal to 0.707 times the peak amplitude equal to 1.41 times the peak amplitude the number of cycles completed in one second None of these the time required to complete one full cycle ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: an increase in current through the coil causes no further increase in the mmf 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 None of these an increase in current through the coil causes no further increase in the mmf 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How many types of flow are there in a semiconductor? 3 None of these 1 2 3 None of these 1 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? None of these The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time The voltage reverses polarity periodically None of these The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time The voltage reverses polarity periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Solar energy None of these Chemical energy Electronical energy Mechanical energy Solar energy None of these Chemical energy Electronical energy Mechanical energy ANSWER DOWNLOAD EXAMIANS APP
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