Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 12 V None of these 24 V 30 V 18 V 12 V None of these 24 V 30 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91? 100 W 1000 W 200 W 20 W None of these 100 W 1000 W 200 W 20 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: None of these their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency All of these None of these their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Neither Primary voltage None of these Secondary voltage Impossible to say Neither Primary voltage None of these Secondary voltage Impossible to say ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is most likely used for measuring the rate of electron flow? Ohmmeter Ammeter Wattmeter Voltmeter None of these Ohmmeter Ammeter Wattmeter Voltmeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? R = E2/P None of these P = E2/R P = PR I = P/E R = E2/P None of these P = E2/R P = PR I = P/E ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS