Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 208 V None of these 707 V 700 V 651 V 208 V None of these 707 V 700 V 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode? 55 A 18.2 mA 16.3 mA None of these 55.86 A 55 A 18.2 mA 16.3 mA None of these 55.86 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the algebraic sum of this series of values:+2, -3, -6,+4? None of these -3 2 -6 None of these -3 2 -6 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a direct statement of Ohm's law? The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of voltages in a loop is equal to zero The algebraic sum of currents entering and leaving a point is equal to zero None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of voltages in a loop is equal to zero The algebraic sum of currents entering and leaving a point is equal to zero None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: None of these has no effect on the inductive reactance multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance cuts the inductive reactance in half None of these has no effect on the inductive reactance multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance cuts the inductive reactance in half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Barrier potential Breakdown voltage Applied voltage Forward voltage None of these Barrier potential Breakdown voltage Applied voltage Forward voltage None of these ANSWER DOWNLOAD EXAMIANS APP
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