Electronic Principles A device that converts thermal energy to electrical energy is called a: piezoelectric devices thermocouple chemical cell None of these solar cell piezoelectric devices thermocouple chemical cell None of these solar cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: peak the voltage and round off the current waveforms None of these peak the current and round off the voltage waveforms peak both the voltage and current waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms None of these peak the current and round off the voltage waveforms peak both the voltage and current waveforms round off both the voltage and current waveforms 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? 0.3 A 0.4 A 0.6 A 0.2 A None of these 0.3 A 0.4 A 0.6 A 0.2 A None of these 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 None of these 200 W 20 W 1000 W 100 W None of these 200 W 20 W 1000 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The total voltage is greater than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is greater than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current can flow through a normally open push button switch as long as: None of these its contact remain open you are pressing the button you are not pressing the button its contact remain open None of these its contact remain open you are pressing the button you are not pressing the button its contact remain open ANSWER DOWNLOAD EXAMIANS APP
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