Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? None of these The ac voltage lags the current by 90 degree Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow Resistances provide the only opposition to current flow None of these The ac voltage lags the current by 90 degree Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow Resistances provide the only opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 100 Ohm None of these 5 Ohm 6 Ohm 50 Ohm or more 100 Ohm None of these 5 Ohm 6 Ohm 50 Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 10.738 0.575 None of these 1.5 0.707 10.738 0.575 None of these 1.5 0.707 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree ac current is converted to dc voltage None of these ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree ac current is converted to dc voltage None of these 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 Flux density Reluctance None of these Number of lines of force Magnetomotive force Flux density Reluctance None of these Number of lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? An atom that contains more protons than neutrons An atom that contains more protons than electrons None of these An atom that contains more electrons than neutrons An atom that contains more electrons than protons An atom that contains more protons than neutrons An atom that contains more protons than electrons None of these An atom that contains more electrons than neutrons An atom that contains more electrons than protons ANSWER DOWNLOAD EXAMIANS APP
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