Electronic Principles The peak value of a sine waveform is: the amplitude at 1.41 times the maximum value None of these the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value None of these the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 90% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? None of these Number of lines of force Flux density Reluctance Magnetomotive force None of these Number of lines of force Flux density Reluctance Magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? None of these 30 V 24 V 18 V 12 V None of these 30 V 24 V 18 V 12 V 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? 0.2 A 0.6 A 0.4 A None of these 0.3 A 0.2 A 0.6 A 0.4 A None of these 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The nucleus of the copper atom contains how many protons? 29 None of these 4 18 1 29 None of these 4 18 1 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals None of these -273o C 25o C 0o C -276o C None of these -273o C 25o C 0o C -276o C ANSWER DOWNLOAD EXAMIANS APP
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