Electronic Principles In a step-down transformer, which is larger? Primary voltage Neither Impossible to say Secondary voltage None of these Primary voltage Neither Impossible to say Secondary voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force None of these The force that maintains lines of force The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force None of these The force that maintains lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best applies to a parallel RLC circuit? All of these The current waveform for each component always has the same amplitude and phase as the applied current The sum of the current is always less than the applied current The voltage waveform for each component always has the same amplitude and phase as the applied voltage None of these All of these The current waveform for each component always has the same amplitude and phase as the applied current The sum of the current is always less than the applied current The voltage waveform for each component always has the same amplitude and phase as the applied voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An ideal voltage source has Infinite internal resistance Zero internal resistance None of these A load-dependent current A load dependent voltage Infinite internal resistance Zero internal resistance None of these A load-dependent current A load dependent voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.4 A 0.3 A 0.2 A 0.6 A None of these 0.4 A 0.3 A 0.2 A 0.6 A ANSWER DOWNLOAD EXAMIANS APP
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