Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 700 V 707 V 651 V None of these 208 V 700 V 707 V 651 V None of these 208 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to None of these Open the voltage source Open the load resister Short the voltage source Short the load resistor None of these Open the voltage source Open the load resister Short the voltage source Short the load resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 180 degree 45 degree 30 degree 75 degree None of these 180 degree 45 degree 30 degree 75 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The opposition to a build-up of magnetic fields None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The force that maintains lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain varies slightly equals the collector current divided by the base current is contant None of these varies enormously varies slightly equals the collector current divided by the base current is contant None of these varies enormously ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? None of these P = E2/R I = P/E P = IE P = I2R None of these P = E2/R I = P/E P = IE P = I2R ANSWER DOWNLOAD EXAMIANS APP
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