Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow None of these The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow None of these The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: piezoelectric devices None of these chemical cell thermocouple solar cell piezoelectric devices None of these chemical cell thermocouple solar cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: how well the material concentrates electrostatic lines of force None of these the amount of opposition to the current flow how well the material concentrates magnetic lines of force the amount of voltage it can withstand before breaking down how well the material concentrates electrostatic lines of force None of these the amount of opposition to the current flow how well the material concentrates magnetic lines of force the amount of voltage it can withstand before breaking down ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? None of these Three - negative, positive and neutral terminals One - a negative terminal Two - a negative terminal and a positive terminal Four - two negative and two positive None of these Three - negative, positive and neutral terminals One - a negative terminal Two - a negative terminal and a positive terminal Four - two negative and two positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that would be repelled by the south pole of another magnet that has its molecules arranged in a random pattern that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole None of these that would be repelled by the south pole of another magnet that has its molecules arranged in a random pattern that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of Kirchhoffs current law? The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of currents in a loop is equal to zero None of these The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents entering and leaving a point is equal to zero The algebraic sum of currents in a loop is equal to zero None of these The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current ANSWER DOWNLOAD EXAMIANS APP
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