Electronic Principles The peak value of a sine waveform is: the maximum positive or negative value None of these the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value the maximum positive or negative value None of these the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: None of these No more than 10% less than the primary current Twice the primary current One-half the primary current Same as the primary current None of these No more than 10% less than the primary current Twice the primary current One-half the primary current Same as the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from negative to positive from positive to negative None of these from neutral to positive from left to right from negative to positive from positive to negative None of these from neutral to positive from left to right ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Breakdown voltage None of these Applied voltage Barrier potential Forward voltage Breakdown voltage None of these Applied voltage Barrier potential Forward 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? 0.4 A 0.3 A None of these 0.6 A 0.2 A 0.4 A 0.3 A None of these 0.6 A 0.2 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? None of these 28.4 mA 24.2 mA 34.4 mA 68.4 mA None of these 28.4 mA 24.2 mA 34.4 mA 68.4 mA ANSWER DOWNLOAD EXAMIANS APP
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