Electronic Principles What is the smallest number of polarities required for current flow? Three - negative, positive and neutral terminals None of these Two - a negative terminal and a positive terminal Four - two negative and two positive One - a negative terminal Three - negative, positive and neutral terminals None of these Two - a negative terminal and a positive terminal Four - two negative and two positive One - a negative terminal 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 round off both the voltage and current waveforms None of these peak both the voltage and current waveforms peak the current and round off the voltage waveforms peak the voltage and round off the current waveforms round off both the voltage and current waveforms None of these peak both the voltage and current waveforms peak the current and round off the voltage waveforms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The algebraic sum of voltages entering and leaving a point is equal to zero None of these The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages in a loop is equal to zero 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 entering and leaving a point is equal to zero None of these The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages in a loop is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it 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? 0.6 A 0.3 A 0.4 A None of these 0.2 A 0.6 A 0.3 A 0.4 A None of these 0.2 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Lost an electron Gained a proton Gained an electron None of these Lost a proton Lost an electron Gained a proton Gained an electron None of these Lost a proton ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The voltage always has the same amplitude and phase for every part of the circuit The total voltage is greater 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 less than the sum of the voltages across the resistance and capacitance None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltage is greater 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 less than the sum of the voltages across the resistance and capacitance None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS