Electronic Principles Current and voltage are said to be in phase when: 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 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? All of these Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these Current leads the voltage through a resistor All of these Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these Current leads the voltage through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: multiplies the value of inductance by four reduces the value of inductance by one-half reduces the value of inductance by one-fourth multiplies the value of inductance by two None of these multiplies the value of inductance by four reduces the value of inductance by one-half reduces the value of inductance by one-fourth multiplies the value of inductance by two None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Forward voltage Breakdown voltage Barrier potential None of these Applied voltage Forward voltage Breakdown voltage Barrier potential None of these Applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 22,000 Ohm, 5% None of these 22, 000 Ohm, 10% 220 Ohm, 5% 220 Ohm, 10% 22,000 Ohm, 5% None of these 22, 000 Ohm, 10% 220 Ohm, 5% 220 Ohm, 10% ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeability Permeance Reluctance There is no valid comparison Retentivity Permeability Permeance Reluctance There is no valid comparison Retentivity ANSWER DOWNLOAD EXAMIANS APP
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